Question K 1.6.2 - Submit button does not work for guests

I'm not sure is it right to post question here on this topic since I'm using the newest Kunena (1.6.4), but the issue is the same..
Here is my config report:

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

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

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htaccess: Exists | PHP environment: Max execution time: 30 seconds | Max execution memory: 96M | Max file upload: 16M

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Joomla default template details : jxtc_newspro | author: JXTC | version: 1.0 | creationdate: 1/20/09

Kunena default template details : A1 - Kunena 1.6 Template | author: TemplateKunena Team | version: 1.6.1 | creationdate: 2010-10-03

Kunena version detailled: Installed version: 1.6.4 | Build: 4832 | Version name: Kerkrade | Kunena detailled configuration:

Warning: Spoiler!

[th]Kunena config settings:[/th]

board_title	Xxxxxx.net
board_offline	0
board_ofset	0.00
offline_message	<h2>The Forum is currently offline for maintenance.</h2> <div>Check back soon!</div>
enablerss	0
enablepdf	0
threads_per_page	20
messages_per_page	15
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
jmambot	0
disemoticons	0
template	A1
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	0
subscriptionschecked	0
allowfavorites	1
maxsubject	50
maxsig	300
regonly	0
changename	0
pubwrite	1
floodprotection	0
mailmod	0
mailadmin	0
captcha	0
mailfull	1
allowavatar	1
allowavatarupload	1
allowavatargallery	1
avatarquality	65
avatarsize	2048
allowimageupload	0
allowimageregupload	1
imageheight	800
imagewidth	800
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	5
showpopsubjectstats	1
popsubjectcount	5
usernamechange	0
rules_infb	1
rules_cid	1
help_infb	1
help_cid	1
showspoilertag	1
showvideotag	1
showebaytag	1
trimlongurls	1
trimlongurlsfront	40
trimlongurlsback	20
autoembedyoutube	1
autoembedebay	1
ebaylanguagecode	en-us
fbsessiontimeout	1800
highlightcode	0
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	0
sefcats	1
sefutf8	0
showimgforguest	1
showfileforguest	1
pollnboptions	4
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	1
polltimebtvotes	00:15:00
pollnbvotesbyuser	100
pollresultsuserslist	1
maxpersotext	50
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	50
thumbheight	32
thumbwidth	32
hideuserprofileinfo	put_empty
integration_access	auto
integration_login	auto
integration_avatar	kunena
integration_profile	kunena
integration_private	uddeim
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	1
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
userlist_count_users	1
enable_threaded_layouts	0
category_subscriptions	post
topic_subscriptions	every
pubprofile	0

Third-party components: UddeIm 2.3

Third-party SEF components: None

Plugins: System - Mootools Upgrade: Disabled | System - Mootools12: Disabled | Kunena Discuss 1.6.4

Modules: Kunena Latest 1.6.4 | Kunena Login 1.6.4

I'm also using Kunena Discuss plugin and it works fine, but the Guest users are unable to post on the Forum (Submit button is not working).
I also noticed that Guest users on the Forum can't write their names like in Discuss plugin and all anonymous users are "Guests". It can make a big difficulties for normal discussions...

I ran the patch from xillibit on page 2 of this forum and it worked fine.

I am locking this topic for three reasons:

(1) K 1.6.2 is no longer supported

(2) It is confusing to other people to resurrect an old topic that talks about a outdated version of Kunena and to resurrect it for other purposes. The "patch" was designed for K 1.6.2 and it is inappropriate to K 1.6.4. I do not remember why the patch was necessary for K 1.6.2.

(3) The question posted two messages before this one contains an edited K 1.6 configuration report. We do not accept edited configuration reports.

Please start a new topic and give a full description of the problem together with an unedited configuration report, and we will see what we can do. Thank you.