Is it possible to pass user credentials to an RSS feed, using the MOSS Webpart?
With a custom web part? Probably.
was hoping to get rid of my custom Web part ....
Nearly anything is possible with a custom Web Part.
So call me crazy, but I want to say that if you're using Kerberos there isthe possibility to do some credential passing to authenticate a feed. Maybethat was just a dream though...
The RSS feed web part does not support authenticated RSS Feeds, so no.