Thanks for this great hack.
I have a little problem unfortunately. At our forum the users can choose between two different styles. Clicking on vBookie link (or anything vBookie related) while using style #2 results in a completely blank page. Then I noticed that this particular style doesn't have those custom templates which style #1 has and it's probably the reason for this problem. In fact, style #1 is the only one which has those custom templates. I do have other styles too but those can't be selected.
Does anyone have any ideas how to fix it? Both styles are child styles of the original vBulletin 3 style.