Hi to you again. I assume you've added a number of new repositories to the application manager in order to install new apps. Here's an idea that works for me. Not sure from your post whether or not you're able to get application manager to launch or not, but if you can try going to "Tools>Application catalog" and go into "Details" for every repo except the default Nokia ones and disable them. Try to refresh again and if that's successful see if you can re-add the others one at a time, refreshing each time you add one back. This is what I do when a refresh hangs or fails on mine and it's worked every time so far, and sometimes I'll encounter a particular repo that causes the stall/failure.

As to installed applications not showing up in app manager, hopefully they'll show up once you've gotten the list to refresh. I've also found that there are a select few apps that only show up when you're running in Red Pill mode.

Anyway, hope this helps.