I don't think these stats are much good. Hosts like Fasthosts with 11,978 active sites running Win2003 is just crap. Fasthosts own ukreg.com (a domain name registrar & host) which means most of the sites listed are forwarded/redirected to other sites running whatever os.
EDIT: Like any stats these things can be distorted and may not reflect an accurate picture. /EDIT
Cheers,
Norm :-)
