Hi Philip.
Check out
this thread which has some discussion on exactly your question, and also links to another thread with the same discussion.
k3ccdtools is the simplest program you'll ever need. Don't worry about how it looks, you won't use 99% of the functions in it, all you use k3ccdtools for is CAPTURE. You then use other software to align/stack (registax). That can take a little while to master but there's plenty of experienced people here to help you through that learning curve.
Hope that helps.