...I hope that parallel programming will solve the problem.
I have a Needham EMP10 programmer and 2 good questions about:
1) Is it possible to program an 89CV51RC with EMP10 parallel programmer that not supports 89CV51RC but 87C51RC microcontrollers? On the 89CV51 datasheet is written "the flash may be programmed or erased using the parallel method by using a commercially available EPROM programmer which supports this device"
No, and don't even try. Not even the programming pinout and algorithms change from device to device, but also 87 indicates, that it's an EPROM based mcu rather than FLASH, so it most probably would fry the modern chip with applying +12V onto it.
2) If the answer is YES then ...I have the programmer but not the TQFP44 adapter! Needham is passed away and I never found informations to wiring an adapter from TQFP44 to DIP40!
If you would have a modern programmer enough to support this particular chip, the adapter would be most probably just straight, connecting the matching pins between the DIP40 and TQFP44 versions as per datasheet.
Now you either find somebody with such a programmer/adapter, or (not likely I guess) buy such programmer/adapter, or explore the possiblity to migrate to a similar chip (most probably the Atmel variants of the 'RD2).
In the latter case, while it's true that Philips/NXP simply dropped hard the '51 users, you should move the discussion to a more neutral grounds, e.g. to the 8052.com forum.
JW