Well I took the plunge and upgraded to WP 2.0. Since that has happened my feeds are publishing as html. Clicking on them displays my regular front page.
Feedvalidator says: It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.
This feed does not validate.
Strangely my comments validate fine:
I've tried it with all my plugins disabled and got the same results.
I don't mind hacking around with stuff, but I'm no expert.
Thanks for the help