Hi everyone!
After puzzeling, a lot of swearing etc. We finally got Dr Queue working on our PC’s with Windows XP. Because of the lack of good documentation, we decided to share our discoveries on this program. So read it and let me know if it works for you! Happy Rendering! 
Manual + Start Up Commands (.zip):
http://www.rovorm.nl/drqueue/DrqueueManualXP.zip
Manual (.doc):
http://www.rovorm.nl/drqueue/Drqueue_Manual_XP.doc
Start Up Commands (.txt):
http://www.rovorm.nl/drqueue/Drqueue_Start.txt