Epson R 1800 and Imac, cd printing feature

Hi the R1800 is finally working, however today i wanted to print a cd and theres no such feature, so i installed the software that came with the printer. almost finished, i click print and then it tellls me that the correct driver for using this feature is not installed.

i go ***? i just installed the latest driver, why always only part of things work on my Imac and not all features?

does anyone have aclue as to what i can try and do to make it work?

Thanks

Marco