I know how to start a replay and save a replay, but the problem is it saves as an srp file and i want to post some of my replays on-line, and i'm not sure how else to save them or if i need an additonal program.

If you want to show the replays to people, who dont have LFS, I believe, the only way to do it is by using a movie program and record the spr with it.

If they also have LFS, just upload the spr.