Firstly a P4PE is a sdram board. It is ddr sdram.
Secondly, don't even bother trying to put a P4 on a sdr sdram motherboard. It's defeating the purpose entirely. Attempting to preserve the slowest component of your current system for any reason will make the money spent on the new processor a waste. Here's what it takes to make the upgrade you seek:
Albatron 845PEV Pro m/b-----85
Retail P4 1.8a---------------142
decent 256MB DDR-----------63
------------------------------------
--------------------------->290 bucks
It's a true do it right or don't do it at all situation. Bear in mind you really need a 350 Sparkle power supply to power the beasty too. If you can't afford to do it right wait until you can, or consider *shudders* an Abit KX7-333/AthlonXP 1700+ combo(which will also require a stick of DDR and a good power supply).