It is a pre built kit.. i think - i didn't know that was a bad thing.
I need to take the hose clamps off and put on the new waterblock--> Swiftech Apogee GTZ Extreme Performance CPU water block . -- just wondering how I take the hose clamps off and properly put on the new one.
Yep, now I see your problem. The CPU block is an older one, good to upgrade to a more modern block. Yea, drain (good to have the cpu block off the cpu and point in directions to drain the water out of the block). Undo clamps, pull hose off gently, inspect hose, put new stuff on, refill, leak test for HOURS and then power mobo etc up, monitor temps.
You'll like the way the waterblock mounts, very nice.
Umm, lets talk radiator size and what radiator and the CPU your getting. I'm a bit worried if the rad is a 120x1 and your getting an i5 or i7, you might not have enough rad.