Hi.
I dont know if you can or are able to help but I have a similar issue with 6.1.1 and groups.
I have a clean and errorless install of dolphin with orca and ray free.
Everything seems to be fine apart from groups.

The link path to the group, on the groups>categories>whatevercategory page, is " /groups/entry/blah " but the only folders in the groups folder are orca and gallery.
No " entry " folder.
Now I have read loads of posts on boonex and expertzzz and cannot see more get to the bottom of this.
I have tried editing the htaccess files and several of the other files mentioned in different posts.
I am running PHP Version 4.4.6 with xml and xslt both enabled.
I am getting 500 errors on my orca/index.php file as well as the orca folder itself, (current permission is 755, reset after install from 777) and therefore when the group page loads I get the following error messages...
Warning: file_get_contents(http://www.blah.com/groups/orca/?action=group_last_topics&forum=another-test&trans=1) [function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.1 500 Internal Server Error in /home/blah/public_html/inc/classes/BxDolGroups.php on line 419.

Warning: Cannot modify header information - headers already sent by (output started at /home/blah/public_html/inc/classes/BxDolGroups.php:419) in /home/blah/public_html/inc/design.inc.php on line 495

The page loads but no css applied, and cant figure this error out at all.

If anyone can help it would be great :-)
cheers