Just to elaborate on this. RSS is unreliable as far as perfection of all elements, as long as it it well formed, that should be the only requirement. Running tests on Feedburner reveals that there are issues with every feed I created, but all work in IE 7 but Fail in IE 8. None test as malformed. I really need an Adobe hotshot to look at this and advise me whether to open a ticket on it.
I am still waiting to hear from someone on this, thank you.
Okay, so here's the answer. Unfortunately I had to answer it myself.
The issue begins with: Because of cross domain security, you either have to go with a proxy: http://www.switchonthecode.com/tutorials/using-a-php-proxy-with-flex-to-talk-cross-domain, http://cookbooks.adobe.com/post_Accessing_resources_beyond_crossdomain_xml_using_m-6702.ht ml. Both of these work, however there is always the issue of maintaining error trapping and whatnot in two places. Also, there are redirects that take place with many feeds, so if you use the java solution (which i tried), you have to code with the same behaviors a browser would use when it is redirected. it gets complicated.
So what to do? Well, if your me, you start looking for a feed consolidator that uses a cross domain file. http://feedburner.google.com does what I needed it to do. Gives me all my feeds wrapped up with a ribbon and a cross domain to boot. Yee Ha!
I'll make this short. The issue was that my feeds looked like this:
<MenuItems rssTitle="Security Magazine News" rssfeed="http://feeds.feedburner.com/SCMagazineNews?format=xml" />
<MenuItems rssTitle="CIO Selections" rssfeed="http://feeds.feedburner.com/cioinsight/GcjS" />
<MenuItems rssTitle="cnet Security News" rssfeed="http://feeds.feedburner.com/cnet/HvtE" />
<MenuItems rssTitle="Security Wire Daily News" rssfeed="http://feeds.feedburner.com/techtarget/lxpN" />
<MenuItems rssTitle="Threat Monitor" rssfeed="http://feeds.feedburner.com/techtarget/VIrx" />
<MenuItems rssTitle="Security New White Papers" rssfeed="http://feeds.feedburner.com/MostPopularWhitePapersAndWebcastssecurityResearch" />
<MenuItems rssTitle="Network Security Tactics" rssfeed="http://feeds.feedburner.com/SearchsecurityNetworkSecurityTactics" />
<MenuItems rssTitle="IT Security" rssfeed="http://feeds.feedburner.com/feedburner/KskG" />
And the only one that worked was the one with ?format=xml on the end. I added ?format=xml to each one and thay all started coming back from feedburner as xml instead of html. That fixed it!
So, if you want to use feeds, use http://feedburner.google.com and you will get a crossdomain file. Be sure to add the format to the request. By the way, FireFox must have it's own way of dealing with RSS delivered as html. Very strange.
If anyone want's to request code examples from us, we are selling some and giving others away. Our new RIA is going online tonight now that this is fixed. Goto http://procontent.net and look around. We will be adding video and other bells and whistles.