Question Edit profile button is linked to index.php

An administrator's account is not going to help me ... and the particular administrator's account that you sent me by PM is not going to help me at all, because I can't see your Global Configuration settings.

You have a SEO issue. To fix this issue for you, I would need a super administrator's account and FTP access to your server. I really don't like doing those kinds of things (unless, perhaps, someone offers me some money to make me forget how much I dislike doing those things).

From what I can tell (and I can't tell for sure because I'm only basing my knowledge on what you have told us) you do not have a .htaccess file sitting in the root level of your site, www.mysite.com/.htaccess ... or ... there's another .htaccess file that is contradicting the rules of the one I've just mentioned. This would explain why you're getting 404 Errors.

I solved it now. Just went in the sh404sef menu->settings->extensions->kunena: changing the last three options to 'no'.

Thank you very much for your help sozzled! Never would have made it without your help

...changing "Short URL to user profile" to "no" is enough to fix the profile link.