Part number for Studio 1555 backlit (UK) keyboard with function key symbols

Hi all.

The keyboard that I now have on my Studio 1555 has no backlight and the function keys have the media key symbols shown more prominently than the function key symbols (i.e. F1, F2 etc are printed very small in blue on the top right-hand side of each key cap).

I'd like to buy a new backlit keyboard with the function keys symbols shown more prominently than the media key symbols (I am already aware that there is a setting in the bios to switch between these two alternatives).

I've already seen the backlit D344C / 0D344C but someone that I've spoken to says that the eject key won't work on a Studio 1555 since it is "not compatible".

Does anyone know if Dell make/made a (UK) keyboard for the Studio 1555 which has both a backlight AND the function key symbols shown on the function keys? If so, what is its part number?

Many thanks, Dave