I've tried a few times to download the above progams from the app manager, but when i click "details" it has "not installable" under the problems section?

When I click on facebook when was already added out of the box, it comes up after a while that package was lost or something along those lines.

Is this a problem relating to my other problem on the other thread "can't get my repositories to work"?

Or something different?

P.s also tried the amazon widget and the APnews one and comes up after a while of downloading "Application package not found"!