Wow! There's some serious VB firepower on Ice In Space!
I'm pretty happy with what I have done so far - I've tried to make it simple and usable. But what might seem simple and logical to me might be confusing to someone else. I'll be looking forward to comments on useability, especially.
I'm also looking forward to some 'fresh eyes' using the app to pick up things I might have missed.
One thing I'm not happy with is the Add Folders... interface - it only allows one folder at a time to be selected and it is not very obvious which folder is actually selected, especially if you're in a hurry. I will be replacing this with a more 'Explorer' like interface as I get time. Since you can drag and drop folders from Windows Explorer I'm not too worried about that.
On the ppmcentre front I've just done a 'quick and dirty' VB app to run ppmcentre with some 'vanilla' parameters - this works OK so it should be fairly easy to create a VB front end to ppmcentre for those who aren't comfortable with command line apps.