I know that this is not the reply you are looking for but it will save you some time. I think vbhacks.com is going to be, in a way, like sitepoint.com. The owners here will release the code if they feel like they should, if the all the original things on sitepoint were released, what would make it differ from any other board (well other from the fact that it is one of the most popular forums on the net when it comes to the things they offer). There has to be some original coding on boards like this and sitepoint in order to make it original and stand out.
I am not saying they will never release any of it, wluke has released some of his coding, what he felt he should. I actually respect them for keeping most of the coding to themselves, it shows that not everything is free and these people have worked very hard to get their forums like they are in their current state (I only images what trouble it is when upgrading).
I am not trying to be hateful, but I think that is how it is going to be with some of the coding, if they feel they should release it, they will, if not, we can't do anything about it - the own the site

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Hope this helps a little.....