I have been using VA on VS2005 for quite a few years now. I have moved over to 2008, but it wont install for me. It seems to install successfully, but the menus don't appear in VS. I've checked and addins are enabled.
Which version of VA are you using? Older versions of VA do not support VS2008, since they were produced before VS2008 was released. The current version does support VS2008.