All Electrical Stuff No Good

[d1_king]

when i was workin on the car i accidently put the battery on backwards.negative on positive and positive on negative.now all of the electrical stuff dosent work anymore.i checked the fuse and all if it seems fine.any suggestions?oh and the fuse box next to the battery found one fuse blown but i dont know what it does. on the cover its said (FL75A/ALT)

[themandan40]

sounds like the 75amp fuse for the alternator dunno for sure. Electrical is not my idea of a good time.

[vancouverbc]

yep, its the alternator fuse. very important.