Hi,
Museeuw bicycles is still active. I'm Belgian just like Johan Museeuw. Here in Belgium you see his bikes on a regular basis. But a couple of years ago Johan needed to leave the business when they made some big losses. (a couple millions). They still use his name and I think it's going better with the company now. I have only tested one of their bikes a couple of years ago and it's a decent brand. They're also not too expensive. I ended up with another bike at the time, just because I don't really like museeuw. But that's just my opinion.