Sony DVD RW DW U18A help needed plz

I have a Sony Vaio desktop pc running Win.xp home edition. Purchased my pc new in September 2004. I am looking for any firmware updates for my burner. At the Sonys web site it lists a Pioneer firmware update for my model, but not the Sony . Strange. (model # pcv-rs630g).
I have never updated firmwware before and appreciate any help anyone can offer me. Thanks so much.

Hi Blondie09
You can go to this website everything there you need