Yes, it can! It runs on the IIfx and IIsi, which are 32 bit clean machines.
It won't operate in 32 bit mode, however, so 32 bit cleanliness doesn't make any difference with System 6.
Yeah just ordinary through-hole (or should that be thru-hole ) tantalums, as I had a load of them lying around and didn't want to spend any money on my first recap..."sure it's not gonna work anyways ).
Besides I find them easier to solder in than the SMT ones.