fog lights?

okay I have seen an ls like mine running around and it has different fog lights, it has the round lens but looks like its in the older rectangle foglight filler of some sort. does anybody know where i can find these at, and if not will the 03-05 fit in the 2000 bumper?

It looks like all the items are sold here (http://www.trademotion.com/partlocator/index.cfm?siteid=318) but it's not easy to determine if they would be drop ins for your older LS.

-Rod