Go to your Forum Admin, then to the Styles on the left is a link under there called Management.
Check and see if there are any other STYLES installed for your Forum Admin.

If there are, you can switch to another one in the Forum Admin/Configuration. This will not affect the Regular Forums as long as your Nuke theme already has a matching phpBB forum template.

If there are no other styles installed you can install one yourself. I suggest the standard subSilver.

All you do is upload the subSilver template from the Nuke6.5 package in the modules/Forums/templates folder to your
modules/Forums/templates folder on yoru FTP.
Then return to your Forum Admin, then to STYLES< then ADD. Click to ADD that subSilver style and then change it to be the default style in the Forum Admin/Configuration..
did ya get all that? :wink:

mikem