[TWTCommish]

The cloaking bit wasn't addressed to me, but restricting posting is a bit different than restricting content, since content is the issue here.

Anyway, I'm afraid I need some more information to debug these issues; a link to your site, for example, would help a great deal. Regarding these:

signature pictures that are on another site, no longer display.

Does this mean the images don't display, the images are broken, or the link is not directed?

the link to a members home page from postbit dropdown does not work.

How does it not work? Is it not redirected as it should be, redirected when it shouldn't, or does it something else? I can't see any of these things, obviously, so I need much more information in order to help debug these problems.