a little problem

I have a little problem, i can't seem to be able to get in my truck because it seems like the door locks are stuck or someting, on both sides. My truck is a 89 nissan hardbody. Is there any other ways i can get in w/out having to bust a window, or what is another way i can unlock my doors?A little help would be appreciated, i am so frustrated, i can't think of anything.

if you cant find another way, dont bust the back window just cut the gasket and replace the gasket, much cheaper

could it be that they are frozen?

They might be frozen, becuase its like 5 degrees outside, and also because my windows wouldn't crank up or down, but i got them to work. Now, should i just wait til tommorow and see if they work tommorow morning? if thats not it, then i'm gonna have to go with Trevors idea.

lube the latch with grease and weatherstripping with some silicone spray or vasoline.

Thanks guys, i got them open without having to do much. Thanks for the help.