I would like to fix the following problems!

-Fuse # 10 keeps blowing its driving me crazy...how can i find the culprid ?
-How do i 'shorten' the AC compressor so i can see if its wokring ?
-My blower does not work, i tried a diffrent one and no luck, i hear a leak under the dask, can that be the culprid or it has nothing to do with the blower ?

Thanks guys for all your help !

first off you need to find out what fuse 10 is...the fuse legend should tell you this, depending upon what car you have, it will be located in different places. a blown fuse usually indicates a short of some kind. Check the wiring to the component in question to see if the insulation has rubbed away and exposed wiring is touching the body of the car.
as far as jumping you compressor relay...find the correct relay and jump circuits 30 and 87...you should hear the compressor clutch click. if your compressor is not turning on when you turn on your a/c, then that usually indicates that you don't have enough freon in your system. depending upon your car, the "ec" light will stay on all the time on your control panel. do not run your compressor if you don't have any freon, you will kill the compressor due to lack of oil.
the blower-disconnect the connector to your blower...should be a connector with a red and a brown wire, use a multimeter/voltmeter and probe this connector, activate the blower from your control panel, you should get voltage, if not, then your blower is not the problem. to check this, get a 12v battery and connect wires from the battery to the blower...red=positive, brown=negative. if your blower is good, then it should spin. your problem could be the control panel (switch). you can also probe the fuse socket for the blower motor to see if there is power there...
all electrical diagnosis is extremely difficult without a wiring diagram. unfortunately getting a diagram isn't easy, so good luck