yes, you can restore a backup from 8.2 to 9.7. The Edition (Enterprise or Express) does not really matter. But there are some points to mention.
The ExpressC is limited to 2 GB of memory. So check your settings.
Also some features are not included in the Express Edition, e.g. MDC or MQTs. See Compare the distributed DB2 9.7 database servers
i didn't recommend the ESE. I just wanted to point out that there are some restrictions on the Express-C Editions which you don't have on ESE. So you check your Database if you can switch to Express-C.
But you brought up another point. You want to run the Database on a Microsoft Cluster, so the Database or Application requires high availability. And now you want to run your Database without support from IBM? Maybe you want to reconsider.