The OpenEdge Hive

We are (still) using AS400 dataserver version 8.0C60 to access DB2 database on AS400
iSeries (os version V5R3). We have to apply the AS400 patch every 6 months but other than
that everything is working fine (client is the Progress application release 9.1D09 (no appserver)
on IBM AIX 4.3.3.0).

Our company is looking into upgrading our AS400 iSeries system, including os upgrade to
V5R4M5 or 6.1.

What am I hearing from Progress support for now is that only OE ODBC Dataserver 10.1C
is supporting V5R4. But our 9.1D client can not 'talk' to OE 10.1C ODBC Dataserver, and we
can not upgrade our client side (application and Progress database) because of AIX version
(not even to 9.1E). Upgrade of AIX system is planned, but it will not happen before AS400
upgrade.

What I want to ask is, is there anybody out there successfully connecting from version 9.1D (or E)
client to AS400 DB2 on V5R4M5 or 6.1, using Progress AS400 Dataserver Version 9.1C (latest released),
or maybe some miracle combination with OE ODBC Dataserver.

If yes, what is the configuration you are using and what are the requirements (AS400 patches,
start-up parameters, environment variables...)?

Thanks