I got a question that's quite similiar to yours.
Object Dock Tray is updated: http://nimix13.ni.funpic.de/tray/index.htm
But has changed a bit. Not to the better I would say.
My problem is: I can't get the systray register to work. Everytime I add a new one, it doesn't show anything. I tried the workaround with the startup stuff... but doesn't show any effect, though the processes are running!They belong to Stardock Central... that might be the problem. I just want to use Object Dock, that's it!
I would like to have my tray icons all in line in one register. As I'm using XP Pro, I really don't know where the problem is...
Can anyone help me please?