How do I Remove Packet CD?

[kagey35]

Hi,
I have just upgraded to a Plex16/10/40A from a Philips 460RW, removing the
Cequadrat Write2CD & PacketCD in the process - or at least I thought I
had!!!
On installing Nero 5.0.4.4. I had no problems, but when trying to install
the InCD packet writing software it tells me I still have PacketCD
installed.
As there was no uninstaller, I removed it by using Add/Rem Progs in Control
Panel & then deleted the relative folders.
The Cequadrat site gives the following info:
1) Delete the PacketCD directory.- already done
2) Delete the files c2udffs.vxd, c2udfvsd.vxd, udf_200.vxd, udf_920.vxd and
udf_jvc.vxd from the directory windows\system\iosubsys. - already gone
3) Delete all entries with PacketCD and UDF from the Windows Registry.
Can anyone tell me exactly which entries to delete as I don't want to do any
damage! I have dabbled with the Registry but not much!
Perhaps someone would be kind enough to walk me through it?
Any help appreciated.
Thanks, Kagey35