Hi, very awesome looking contribution!

I will try installing it on one of my test sites soon and see if I can offer any feedback, or encounter any bugs

Edit: Gave it a shot and encountered this when I went to "create store feed"

Operational File Error - Can't Open File Q1De Castro Leon Ubercart Rss Feed Machine v1.0.0.0http://www.mytestsite.com/rss.xmlThis Is A Product feedenFriday, July 30, 2010 10:23 http://www.mytestsite.com/node/29 test2 25.00000 new http://www.mytestsite.com/node/30 test3 35.00000 new http://www.mytestsite.com/node/32 test4 65.00000 new

Other errors after enabling error logging -

* warning: fopen(rss.xml) [function.fopen]: failed to open stream: Permission denied in /home/mytest/public_html/sites/all/modules/ubercart/uc_website_xml/uc_website_xml.module on line 473.
* warning: fwrite(): supplied argument is not a valid stream resource in /home/mytest/public_html/sites/all/modules/ubercart/uc_website_xml/uc_website_xml.module on line 474.
* warning: fclose(): supplied argument is not a valid stream resource in /home/mytest/public_html/sites/all/modules/ubercart/uc_website_xml/uc_website_xml.module on line 474.
* warning: Cannot modify header information - headers already sent by (output started at /home/mytest/public_html/sites/all/modules/ubercart/uc_website_xml/uc_website_xml.module:473) in /home/mytest/public_html/includes/common.inc on line 148.
* warning: fopen(rss.xml) [function.fopen]: failed to open stream: Permission denied in /home/mytest/public_html/sites/all/modules/ubercart/uc_website_xml/uc_website_xml.module on line 473.
* warning: fwrite(): supplied argument is not a valid stream resource in /home/mytest/public_html/sites/all/modules/ubercart/uc_website_xml/uc_website_xml.module on line 474.
* warning: fclose(): supplied argument is not a valid stream resource in /home/mytest/public_html/sites/all/modules/ubercart/uc_website_xml/uc_website_xml.module on line 474.
* warning: Cannot modify header information - headers already sent by (output started at /home/mytest/public_html/sites/all/modules/ubercart/uc_website_xml/uc_website_xml.module:473) in /home/mytest/public_html/includes/common.inc on line 148.

When opening the .module file with my text editor: uc_website_xml.module contains characters that do not exist in code page 1252 (ANSI - Latin I). They will be converted to the system default character, if you click ok

Final Edit: Ok - I had to create my own rss.xml file manually in my root directory, then give it writable permissions. Once I did that, the module was able to open and write to it. So you need to make sure the module can create this file I suppose