Well, it picked up the drivers for the WiFi dongle from Win update (something that doesn't happen on XP!!!) and it works with no issues whatsoever.
So, that's been this machine on Win7 since yesterday afternoon, not even felt like going back to XP, everything running sweetly on my system, which I cannot complain about when you consider it's low (for this day and age) specs
(AMD Athlon 2600XP
1GB RAM
Win 7 partition 63.7GB
GeForce FX5500 256Mb gfx card
Cheapo AC97 sound)