61 degrees load you say? If thats true, for a Pentium 4, thats not bad at all, as they can run well within 60 degrees.
If you were condifident to fit a new CPU cooler into the PC, you could get the Arctic Cooling Freezer 7 for Pentium CPU's, and that'll cool way below the one you have now. Its cheap too, but cools alot better.
Get this, it should work. Speed Fan:
It also looks at your hard drive health, and allows you to change fan speeds (haha, something I advise you don't do), etc