Ok, couple of things here:
First, you don't need to use WMP Slipstreamer if you're already using one of
boooggy's WMP11 Addons. The slipstreamer is mainly for someone trying to integrate WMP11 in a language other than English. It works using Microsoft's original WMP. If you're already integrating one of boooggy's WMP11 Addons, you don't need to use the Slipstreamer.
Also, you might try adding everything in THIS order:
Ryan's Update Pack
WGA
DirectX 9
boooggy's WMP11
DmX's IE7
Not to steal the thunder from
nuhi (I still owe him big for helping me out

), but since alot of these addons are from RyanVM, you also might consider posting
there for help.