I got my answers from the UAD forum, but I left an important fact out here that helped them figure it out. I am using the 64-bit version of WL and the UAD plug-in are 32-bit so I needed to use jbridge–which I have.
I also needed to create a new group in the VST organizer window and put the jbridged UAD plugs in there. Now all is working and I’m very glad I get to use the awesome UAD mastering plug-ins with WL7 (and 8).