When I've finished my downloads I would like to erase all files relating to my session using Limewire. Which application files can be deleted safely so that I can achieve this?

Thanks...

You would cancel all items in the downld window. Then go to Library window, select incomplete folder. And select all incomplete files & delete. But be careful they're the only ones you delete.

I was looking for more information regarding the application that records upload and download data etc. What I want is to use my erase program to wipe ALL knowledge of my session on LimeWire.

You would then need to delete all files within the incomplete folder. That includes the downloads.dat & bak files. These files only record what incomplete files you have. As for upload & downld history, it disappears after you close the program. Your isp of course might have some records. But that would require extreme close examination which they wouldn't do unless there was a purpose for it.