Methanoid - sorry, I don't know.
I'd start a new thread and see if anyone can help.
Amigauser - that sounds completely wrong. The workbench won't work if you didn't follow the onscreen instructions so goodness knows what you've done! I'll have a look into this when I have more time.
As for disks and games - that's what WHDload is for!
Do a search and have a read around as there should be loads of advice on this.