http://forum.xda-developers.com/showthread.php?t=539909
Above is the link to the XDA thread I was speaking of in my previous post.
I do remember also finding a cab file which changed it to gray instead of white, but I remember I uninstalled it because it was screwing up the spacing with my taskbar icons. I could not find that thread again, but I want to say it was posted by a user named BilboBrian over there. (I may have the spelling wrong).
I hope this finally gets figured out, it would be great to finally be able to change the color of the taskmanager icon...