power locks broken...

the power locks dont work on my '92 Civic, and the guy i bought it from said there was a "lock module" that had to be replaced or something like that... is there such a thing i can get online and replace myself? also, edmunds says remote trunk release was standard on a 92 civic lx, but i have no remote. Would i be able to buy the remote online and have a honda dealer program it? thanks alot