I think it looks ok so far. tcat and thead gradients are very nice. Hovewer there is absolutely nothing special about that style. Its just default vBulletin layout with modified images and colors. So my suggestion is to add something unique to it.
Another suggestion is to make text on buttons sharper. Its way too blurred right now compared to icon on left part of that button (i mean buttons like "post reply", "quote", etc...).