HP 8150 colours adjustment?!!!

[buckaroo]

I have photoshop 7.0 artwork done on another pc with a HP8150 printer.

I myself have the cd of artwork here on my laptop with a similar HP8050 (as i think the 8150 is now discontinued) but i CANNOT get the colours to match!

PLEASE help how i get the same colours for my artwork on this printer? i have tried the printer preferences within Photoshop and general colour settings within Photoshop, but still cant get the colours on paper to match.

surely all artwork doesnt have to be done on excatly the same printer and pc EVERY time?

Any help on any settings would be great. I even have contact with the mate who did the artwork originally and the printing and we have both been through our settings making sure they are the same!!

Anything i have overlooked??