You didn't really hose up anything (you followed the instructions which were intended for general users - I just updated and refined the document to prevent that from happening to AHMI users in the future and also added some more details to the installation procedure).
What you can currently do is remove all these new controls (right-click each control and then click Delete).
Then in the step 4 that says to "right-click project, point to Add and select Existing Items" you should instead right-click the PurchasedControls folder, point to Add and select Existing Items.
This way you will keep all the controls in the same folder.
Also read my next post.