skaa,

Come on, you're in a bind. Get the noggin workin'. Just because a part was changed a year ago does not mean that it is still good.

Does your friend have a digital volt meter? You can get one for $20 at Sears. In fact, since you are stranded, a starter/alternator shop could diagnose your problem for probably that amount or even free if you buy the necessary part from them.

You need to do a voltage drop test. Put one lead on the positive battery post and the other on the large nut on the starter motor below the solenoid. Have someone turn the switch to start. If the voltage is larger than .5 Volts then leave one lead on the battery post and keep moving the other lead back up the circuit until you have less than .5 Volts. The point between these two test points is your problem. Likely the solenoid, but you don't know until you check.

Don't overlook the condition of your battery cables.

We will be here if you need us.

Best of luck,