Edit: I believe when I drag around windows on my desktop with a WB enabled it doesn't feel as smooth as using the original vista theme, is this just me or is this something that commonly known?
That might be a question of the amount of RAM you have, your graphics card memory or both...
I started of with WB and verified it, it says it has an update and the update number is exactly as the one before. I reboot after it has installed the "update".
After booting up I go into impulse and verify MC it says the same dialog as usual (There is something wrong with your install, check if there is any updates) and a update shows up with the same version number as before... Impulse tells me to reboot and I do so. When I boot up again I decide to first install the Think Green MC theme which I am currently using but has not shown up as installed in Impulse...
I then start up MC and it tells me in the application that there is an update, I install it and it tells me to reboot, so I reboot once again now.
I have yet too see those 4 free MC themes that are supposed to be included in the subscription, you know how to get them or maybe why I don't see them in impulse?
My Impulse and MC behave the same way. Please open a ticket at support@stardock.com.
As to why your downloads (4 themes) haven't appeared in Impulse/MC...I don't know. BUT:
Q: I don't see the theme I purchased. How do I add it?
A: When you purchase a MyColors™ theme you will receive an e-mail that includes a registration code. Click on the My Themes tab and then on the Add Registration button to start downloading your theme. Enter your e-mail address (the one we sent the registration code to) and the registration code then click OK. Your theme will begin downloading automatically.
If you don't see that email in your email you used to purchase it, then check your spam folder...it might have been stuck there by your email program.

Link to MyColors faq: Link