Digital BW, The Print

I am in the process of migrating to a Mac system from WinXP in order 
to use the Quadtone RIP. I have the RiP up and running and I am very 
pleased with it, couldn't be better. However this is not a easy 
path, my latest problem is when I tried to Install the Mac PS7 
upgrade. I find that Adobe will not accept my old Windows serial 
number. They want me to send them $149 bucks for a upgrade to the 
full version because my qualifing product is windows and not Mac 
serial! This is just plain silly when PS 8 is jsut around the 
corner. Much the same is true to use the RAW plugin, I have Elements 
installed on my Mac. This time they want me to send a letter of 
destruction, they will refund my money for the plugin and then I 
must purchase the MAC version....Silly or what.
Has anyone else found a easier way of migrating? 

Fustrated,

Barry