3
You need to deinstall your modules correctly. Reload the modules to your new site, they should reappear in your admin panel. Then uninstall them correctly. Once they are unistalled correctly you may remove the code from your server.
The module corruption may be what is causing your other problem as well.
There are other ways to do this but they are more involved and require you manually edit your database content...
Pax vobiscum,
...mark
may the road rise to meet your feet!
http://treemagic.org