Yep it works with v7 (v7.32).
Ive been away for most of the past week, otherwise would have done a lil bit of a write up on this.
I ordered a couple of these - theyre brand new, but now discontinued models. The only thing to bear in mind is that although they are wireless they are only 1 port ethernet so you may need a network switch if you want to use it with more than 1 PC hardwired.
We've also had a play with it on a line that was that previously was using a DG834G, used DMT to amend the target SNR we actually got a line to sync sucessfully at 8096 and the IP profile is now at 7000, rather than 6500. Need to get interleaving turned off to get the full profile, but it seems to be handling the line ok so far.
Finally one quirk with this router (which isnt actually specific to the 576) is that it appeared to have a problem when changing the default username and passy. It appeared to keep locking the new username out and had to reset the router.
However, after a bit of research I found that this problem also occurs on some other ST routers (I found the source after seeing it linked with the HomeHub).. but the actual problem is with IE7.
So if you want to change the default user and/or password, use either Firefox or Opera to do so and it works fine.
For £12 (plus p+p) theyre a damn good buy.