Ok, so this forum stuff im used to... not just the nissan style

So please do point me into the right direction. (By force if necessary)
I own a Primera slx -91 since -94 and just this year my power windows ( ? ) stopped working. only in the backseats though.. and to make it more complicated, left side is able to close the window, but not open it, and the right side can do neither (or vice versa...)
sorry if i´m short of info, but the time is currently 03:41 here in sweden and i just found this site. Please bear with me.. (and i also apologize for mis-spelling)
Anybody care to help a poor primera-owner? :P
nice though, huh?
http://bilen.dman.se/slx.jpg