i have the upper and lower timing covers off and the upper mount off the reason i am attempting to replace it is because it was overheating then the powersteering pump belt tore itself apart so i assumed with the overheating and the belt locking up it was the water pump locked up but when i took the covers off it seems to be spinning freely it also broke the balance shaft belt. i decided to go ahead and replace the pump since i already bought it and it was overheating before. the timing belt has just been replaced and luckily it didnt get taken out but the question i have is wat might have caused the whole thing and do i have to take off the timing belt to get the pump out because i havent done a tbelt before and im a little afraid that i might mess somthing up.

I do beleive that timing belt has to come off because of the tensioner pulley being in the way. The following should help a little:

1. Clamp part of hoses (Power steering)
2. Engine mount bracket
3. Drive belt
4. Drive belt (Power steering)
5. Tension pulley bracket
6. Drive belt (Air conditioner)
7. Water pump pulley
8. Water pump pulley (Power steering)
9. Crankshaft pulley
10. Timing belt upper cover
11. Timing belt lower cover
12. Automatic tensioner
13. Tensioner pulley
14. Timing belt
15. Crankshaft sprocket
16. Flange
17. Timing belt B tensioner
18. Timing belt B
19. Alternator brace
20. Water pump
21. Water pump gasket
22. O-ring

Actually, I'm sure the timing belt doesn't have to come off for a water pump change. It's been a while, but I've done one. Basically, you've started out right, just put a floor jack under the oil pan with a block of wood on top and jack carefully making sure not to dent the oil pan. Dent the oil pan and you're in for more than you bargained for but you CAN do it as long as you're careful. Jacking up on the oil pan will make this install 10x easier. You've done almost half the work already, just take the pulleys off and take out the (I think there's about six) bolts that hold the pump on. Use a prybar to pry it off the side of the block, clean off the remaining silicone, and then repeat in reverse order with the new pump and silicone.