[chrisplough]

Catharine,

Short answer:
We go back to the beginning! As long as it's useful to our user community, we'll support any OTM version. The only way I know to get the OTM Admin guides for v4.0 and v4.5 is through Oracle Support (submit a TAR). I have copies, but unfortunately have to be careful about posting them in public forums (like here), since Oracle is very strict about upholding their copyrights.

Longer answer:
I was at G-Log from 1999 to 2006 and was involved with the development of all version of OTM (then GC3), including the portal versions we created to get VC funding. I actually have a weakness for the old versions, as they remind me of some very good times with my friends at G-Log.

On a more professional level, we (MavenWire) are also supporting several clients who are moving to OTM v5.5 from GC3 v4.0 and v4.5, so I'm familiar with the process.

if you have any specific questions - please post them and I'll do my best to help.

Thanks!
--Chris