The door will be easy to realign just a matter of undoing the bolts and moving the door also just to add ive just changed the catches and pins on my 16v and the doors close alot better as the material around the pin wears out and causes the doors to become clunky and not shut properly,as for the window this is proberly the regulater getting jammed,i also had this problem,the metal wire that goes thru the motor that pulls the window up and down gets frayed over time and then gets jammed in the motor,its not hard to take apart just abit fiddley,id say its worth taking the whole thing out to inspect the regulater and the motor,you can buy them seperatly or together from eurocarparts and gsf again my advice here would be dont go for the cheapest option if you can afford it as the cheaper ones are ok but dont fit that great and you may well end up filing down the white clip on the regulater because it catches on the door as it goes up and down.