www.phantomonline.com - given the age of yours it might be worth e-mailing since I think there might have been slight changes to the power tubes over the years, Mike Cassidy will know and gives fantastic customer service - he accidentally sent the wrong barrel when I ordered one and shipped a replacement all the way from the states as soon as I sent him pictures by e-mail.
For the others you might have some luck with any parts you need at www.baccipaintball.com again Dan is extremely helpful and has all sorts of goodies on his site.