What is it? GTi? If not, may i suggest that you put a GTi box in, if possible... Mk2/Mk3 Gearboxe's (non GTi) are very weak! I went through 3on my 1.8 Driver, and in the end put a GTi one in.. still going strong i believe!
FWD Gearbox are pretty simple to be fair... make sure you got a jack under the sump (with wooden block) before you undo gearbox mount, and let in down gently and she should slide out pretty easy
One awkward thing on a GTi too (if it is ) is the Downpipe 'bolts' ... they're very strong springs, DON'T touch them
You might have to remove lower joints to get the driveshafts out too