electrical short?

[AlienYouth]

so, i've been having some electrical issues...

friday, my battery dies..., i get a jump and it gets me home, but wont start back up...
saturday mornin, get new battery, runs fine, turns off and back on and all that good stuff saturday afternoon, go get gas, wont turn back on, few laps around wawa and a jumpstart later, it's all good...
saturday evenin, started right up many times
sunday mornin, starts fine, after church, starts fine, go to work, come out on break, and it tries to turn a little but wont start...
then, it dont turn at all... tried to jump it, tried to push start it, nothing. not even my little interior light or radio would turn on. one little led on my battery tester stayed on, unless i tried to use the radio, lights, ect... the battery monitor said it was good when we had the jumpers connected, but it acted the same way, i'm thinking it's a lose or corroded main positive wire thats restricting too much current, but i couldnt get the fusebox off in the walmart parkin lot, so ima have to drive my f*rd (with chevy badges to cover the shame of course) to school tomorow. is this a common problem? maybe an easy fix? plz???? anything!?!?!! electrical problems make me wanna hit things...

thanks for any help!

and srry bout the long post, figured it would be best to be descriptive