Newbie problems with window motor

Hi everyone whos online today and happy easter,I have had my 800 about 8 months but need some help with a few problems starting to happen
1,The two speed fan is only working on one speed,Ive been told it could need the relay changing but I cant find it,ive been told it is a large black one not yellow as the car has air con and it is not the standard relaythink its the one Rimmers have a picture of on there web site priced about 80
2,I seen a post about someone making sills for these cars,does that include the coupe
3,the window seems to stick half way up sometimes and wont go all the way up for quite a while after numerous tries,this happens on the drivers side sometimes but mainly on the passenger side
I would appreciate any helpful replys no doubt these are topics youve probably come across before but as Im a newbie sorry to bring them up again,thanks Dave