> my boyfriend was changing my battery and he put it in so that the
> positive was there the negative goes and negative where the positive
> goes.... now it does not start but all the lights and radio works...
> do you have any idea what he might have done to my truck? did
> something to a fuse? if so what one would it be?
Maybe a fuse. Just check them all. Otherwise, give us more
information on what happens when you turn the key - are there
dashboard lights, do you get a solenoid clunk, does the starter
engage at all?
In any case, just have a look at the wires that run from the battery.
You might find that one of them (could be on the positive or negative
side) has burnt through. In particular, look at the wire from the
battery to the starter, and from the alternator to the battery.

Signature
*--------------------------------------------------------*
| ^Nothing is foolproof to a sufficiently talented fool^ |
| Heath Raftery, HRSoftWorks _\|/_ |
*______________________________________m_('.')_m_________*