Transfering FS files from old PC to new PC's FS files?

Installed new FWS2004 on the new tower, as I'd specified earlier today in the Hardware Section, and again thank you to everyone who helped.....now, here's what I'm trying to do: I'll remove the hard drive from the old PC tower, put it in the new tower as a secondary...the goal is to take files from the old FS and plant them into the new FS, such as FS9.cfg, add-on aircraft, scenery, AFCAD .bgls and my payware aircraft & FSUIPC plus their keycodes, whatever file they may be in. What would a guy have to do in order to transfer all this over from the old FS to the new FS? Files, folders and such? Where would a guy have to look? Any help would be terrific. Thank you! 
