Sorry but Uridium32 definately won't work on a CDTV without modification. The RGCD startup picture (on the released version) is AGA for starters. It's coded for 2MB chipram and also it has some 020+ instructions in there too (hitting VBR & CACR).
I had the CD32 as a target machine and that's what it was coded for. Sorry if you wasted some time & CDRs trying it for CDTV.