Is there an auto tune plugin that will work for Audition v1 and XP Pro?

I know my Audition version is old but this program still works great running on an HP Workstation.  The only thing I'm having trouble with is finding an auto tune plugin that will work on XP Pro and version 1 of Audition.

I understand version 1.5 has some kind of auto tune built in.  I don't know if it's possible to find a copy of version 1.5.  I'm guessing not.

Any thoughts or ideas appreciated.

PS: I use this software to record original songs so it's just a hobby, not a busines.