Problem: apps installed, but no icons!

Ok, one more problem: I installed a few apps on the memory card, then I inserted another MMC and the icons for the apps disappeared. That's when I figured out that I should've kept those apps in the phone's memory. So I reinstalled them but the icons didn't appear! The file manager shows that they're installed, but no icons! :(( What should I do? But please no need saying "insert the previous card" - the new one is 128 meg.

How can I transfer the contents of one MMC to another? I tried to copy using a card-reader, but only the video files, pics etc (everything that is in PC format) were transfered.