A tube site is like youtube, embedded flash videos.
What you need to do is make a plan of what your going to do before you do anything.
You could put an avs site on your root domain, but if you put it on sub folders like blunkies.com/creampieavs/ you could make multiple avs sites and promote them with multiple freesites. I work for netverifier and most of our webmasters put their avs sites on a sub folder or sub domain. They usally keep some sort of niche related hub on the root domain. When you make an avs site the goal is to sell it like a paysite. You are allowed a few sponsor links on you avs member pages but the sales from those pages are far and few between. Whatever you decide to do, you will need a constant flow of traffic to make sales. This is why i suggest you learn to make freesites to drive traffic to your sponsors or avs sites. If you need help with making an avs here is my work icq 385344841. I wont be in the office till monday morning though
.