did they ever mention who Syfo Dias(sp) was in any of the eps?

He was a Jedi Master and member of the Jedi Council...

They never actually revealed if he was actually killed, or if he faked his death or something weird like that...

Syfo Dias = Si Dios = Sideous

I like Ahnk's thinking. Sounds plausible.

I thought of that, too... but Syfo Dias was (apparantly) a high-ranking member of the Jedi Council. Since we know Sideous is Palpatine, how would he have pulled off sitting on the Council and being Senator of Naboo?

Unless he "died" some time before the events of TPM, and then 'Palpatine' showed up. But that too raises the question: wouldn't the Jedi have recognized him?

*shrug*

I just assumed that shortly after Sifo Dyas died either Sideous or Dooko mascauraded as him and placed the order

I wish they had clarified it.

Actually, I think he was killed on the Outbound Flight project, and was a renowned friend of the Senator. Or was that someone else? I think it was him.

Wasn't Jorus C'boath who was friends with senators and died on the Outbound Flight project

Yeah, that's who I was thinking of. Sorry.