How to edit external.php RSS output?

[Andy R]

I have a few forums and the RSS output for them is different. I am wondering why (is this a template issue)?

Attached is a screenshot of the RSS feed into My Yahoo!

[Floris]

One is RSS and the other RSS2

[Andy R]

I am calling them using the same url? Is there something I need to do/change to make them both have the description with them? Is there a setting for this?