To see and download software you're entitled to, go here:
https://store.stardock.com/myaccount/products
Click on Object Desktop Manager, then just below that to View Individual Downloads.
As for logging onto forums.stardock.net, I just logged on with no problems whatsoever. You might have run into a passing hiccup. Try again.
If you have additional problems, a Community Support assistant, or Support person will probably happen by to help.
