Question How can I change the size limit of avatar and signature images?

If you cannot produce your K 1.6 configuration report then you have bigger problems than not being able to change the size of avatar images. I don't know what version ofof Joomla you are using or if your site meets the technical requirements but I recommend that you carefully read everything in the K 1.6 Installation Guide and that you try to install Kunena again.

Sozzled,

But doing it... the forums, sub-forums, new threads, I will lost?

This topic has gone on for three weeks. You do not have a properly working forum. You cannot use simple tools like create a K 1.6 configuration report. You are unaware of how Kunena is structured and you want to hack it. From what you have written, it seems that you have not had a lot of experience in managing internet websites.

I have no idea how busy your site/forum is. Only you can say what your time is worth. You want to know if re-installing Kunena will lose content? I would say that you won't lose content but I don't know if your database is in a fit state that will allow you to re-install Kunena or not. I suspect that re-installing Kunena will erase the software changes that you've made (and that might be a good thing) but I can't say about anything else because I don't know anything about your website. For example, we do not have your K 1.6 configuration report. If we cannot obtain your K 1.6 configuration report what kinds of guarantees are you expecting from us?

Sozzled,

Wow! yes, actually is the first time I have a website and I'm reading some books about these matters when I have time... so, sorry for my doubts
Well, I could re-install the kunena 1.6.3 version with no problems and all data remains same, so the database is good

Below I send you the K 1.6 configuration report

Database collation check: The collation of your table fields are correct

Legacy mode: Disabled | Joomla! SEF: Enabled | Joomla! SEF rewrite: Disabled | FTP layer: Disabled |

This message contains confidential information

htaccess: Exists | PHP environment: Max execution time: 30 seconds | Max execution memory: 512M | Max file upload: 128M

Joomla default template details : dmo_brasil | author: Rafael Henrique | version: 1.0.0 | creationdate: 06/11/2010

Kunena default template details : Blue Eagle (default) | author: Kunena Team | version: 1.6.1 | creationdate: 2010-10-23

Kunena version detailled: Installed version: 1.6.3 | Build: 4344 | Version name: Parlare | Kunena detailled configuration:

Warning: Spoiler!

[th]Kunena config settings:[/th]

board_title	Digimon Masters Brasil Fórum
board_offline	0
board_ofset	0.00
offline_message	<h2>O forúm está em manutenção. Volte em breve.</h2> <div>Obrigado!</div>
enablerss	0
enablepdf	0
threads_per_page	15
messages_per_page	6
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
jmambot	0
disemoticons	0
template	default
showannouncement	0
avataroncat	0
catimagepath	category_images/
showchildcaticon	1
annmodid	62
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	0
showemail	0
showuserstats	1
showkarma	1
useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	0
allowfavorites	1
maxsubject	50
maxsig	300
regonly	0
changename	0
pubwrite	0
floodprotection	0
mailmod	1
mailadmin	1
captcha	0
mailfull	1
allowavatar	1
allowavatarupload	1
allowavatargallery	1
avatarquality	100
avatarsize	2048
allowimageupload	0
allowimageregupload	0
imageheight	2000
imagewidth	2000
imagesize	150
allowfileupload	0
allowfileregupload	1
filetypes	txt,rtf,pdf,zip,tar.gz,tgz,tar.bz2
filesize	120
showranking	1
rankimages	1
avatar_src	fb
fb_profile	fb
pm_component	no
userlist_rows	30
userlist_online	1
userlist_avatar	1
userlist_name	1
userlist_username	1
userlist_posts	1
userlist_karma	1
userlist_email	0
userlist_usertype	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	1
latestcategory	0
showstats	1
showwhoisonline	1
showgenstats	1
showpopuserstats	1
popusercount	10
showpopsubjectstats	1
popsubjectcount	10
usernamechange	0
rules_infb	1
rules_cid	1
help_infb	1
help_cid	1
showspoilertag	1
showvideotag	1
showebaytag	0
trimlongurls	1
trimlongurlsfront	40
trimlongurlsback	20
autoembedyoutube	1
autoembedebay	1
ebaylanguagecode	en-us
fbsessiontimeout	1800
highlightcode	1
rss_type	topic
rss_timelimit	month
rss_limit	100
rss_included_categories
rss_excluded_categories
rss_specification	rss2.0
rss_allow_html	1
rss_author_format	name
rss_author_in_title	1
rss_word_count	0
rss_old_titles	1
rss_cache	900
fbdefaultpage	recent
default_sort	asc
alphauserpointsnumchars	0
sef	1
sefcats	0
sefutf8	0
showimgforguest	1
showfileforguest	1
pollnboptions	5
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	1
polltimebtvotes	00:15:00
pollnbvotesbyuser	100
pollresultsuserslist	1
maxpersotext	0
ordering_system	mesid
post_dateformat	ago
post_dateformat_hover	datetime
hide_ip	1
js_actstr_integration	0
imagetypes	jpg,jpeg,gif,png
checkmimetypes	1
imagemimetypes	image/jpeg,image/jpg,image/gif,image/png
imagequality	100
thumbheight	200
thumbwidth	200
hideuserprofileinfo	put_empty
integration_access	auto
integration_login	auto
integration_avatar	auto
integration_profile	auto
integration_private	auto
integration_activity	auto
boxghostmessage	0
userdeletetmessage	0
latestcategory_in	1
topicicons	1
onlineusers	1
debug	0
catsautosubscribed	0
showbannedreason	0
version_check	1
showthankyou	1
showpopthankyoustats	0
popthankscount	5
mod_see_deleted	0
bbcode_img_secure	text
listcat_show_moderators	1
lightbox	1
activity_limit	0
show_list_time	720
show_session_type	0
show_session_starttime	0
userlist_allowed	0

Third-party components: AlphaUserPoints: Disabled or not installed | CommunityBuilder: Disabled or not installed | Jomsocial: Disabled or not installed | UddeIm: Installed (Version : 2.1)

Third-party SEF components: sh404sef: Disabled or not installed | ARTIO JoomSEF: Disabled or not installed | AceSEF: Disabled or not installed

Plugins: System - Mootools12: Disabled | System - Mootools Upgrade: Disabled | JFirePHP: Disabled or not installed | Kunena Discuss: Disabled or not installed | Kunena Search: Disabled or not installed | My Kunena Forum Menu: Disabled or not installed | My Kunena Forum Posts: Disabled or not installed

Modules: Kunena Latest: Enabled (Version : 1.6.2) | Kunena Stats: Disabled or not installed | Kunena Login: Disabled or not installed

Good. Well, before you mess things up, make a backup of your site. Experiment with Kunena as it came, "out of the box", and resist the urge to change things unless you know what you are doing.

When you have your site back online we might have a look at it.

Sozzled,

Now that you could see my configuration report...
could you saw why the avatar size changes it doesn´t reflect?

Regards