i downloaded the update and unzipped it acordingly, yet when i go into the game, if i go into cusomise squad(Player Edit/Team Edit) and try to select a team that has an edited jersey (exc. adidas jersey) the program Crashes. Is there no way i can edit my team without it crashing?

Yes, you are absolutely right.
It is because the game was originally designed just to support 36 jerseys but you can add up to 64 without the game crashing when playing matches. The ingame editor though, crashes when jerseys 37-64 will be showed. I'm sorry but there is nothing I can do about this. If you want to change jerseys I suggest that you use FEd98 and the built in jersey changer and editor JEd98.

thankyou, i thought it might have been a bug in my download

You're welcome!