It's complicated and hard to do. There have been other threads
I wouldn't recommend porting a map if your a newbie. It takes experience to see how to reconstruct it properly. You could always give building it from scratch and memory a try though.
You can transfer the textures using wally and photoshop, but don't. Not worth it. Also many classic TFC textures have already been recreated in FF.
OH, and if you have the ORIGINAL rmf, it's easy peasy. Just need to redo textures and entities (so long as you don't want to change geometry, which you should want to, so we can part like it's 200
