Can't format FAT16 microSD card

For reasons too long to explain, I formatted my 2GB AData microSD card
to FAT16 instead of 32. Shortly after, I found out that that wasn't a
good idea, as when I reinserted it into my adapter and into the PC, it
wouldn't recognize it anymore.
I tried two different readers (one microsd direct reader and a miniSD
convertor one) on two different PCs, both running on WinXP.
What I want to do is reformat this on FAT32 so I can get on with it as
before. Is there a way to do this, or is it beyond repair? I kinda need
it now and in the near future, so going out and buying another isn't an
answer for me.

Thanks!