Facebook permalink .htaccess

Hello,

can some body tell me what is a problem and how to fix it?

When i login on demozzz.com by my Facebook account then i can use permalink

http://demozzz.com/dolphin7b/Nurković

But if i login on my site then i can't use it.

I get message on site that this page don't exist.

I have enabled permalinks in my admin panel.

When i use disabled permalinks then i can access profil but then i get link like this

http://www.mydomain.com/profile.php?ID=4

Is there something i need to write in .htaccess?

I found out...

this line in .htaccess

RewriteRule ^([A-Za-z0-9_-]+)$ profile.php?ID=$1 [QSA,L]

should rewrite with this

RewriteRule ^([^/]+)$ profile.php?ID=$1 [QSA,L]