[carrlos]

1. did you upload the .htaccess file or add the rewrite lines to your existing .htaccess file? Yes

2. does your server permit mod_rewrite? Yes (tested)

3. did you customize the location of the sitemap file in the vBSEO_sitemap options in your Admin CP? No

4. did you try adding the following lines BEFORE the vBSEO_sitemap lines in .htaccess:

Options +FollowSymLinks
RewriteEngine On
RewriteBase /

No, I will try this.

5. do you have any other mod_rewrite instructions in your .htaccess file? if so, ensure that only the last one ends with "[L]". No, it's the one that came with the mod.

Thanks for the help, I'll report back success (or lack thereof)!

Edit:
Would this be correct????

Options +FollowSymLinks
RewriteEngine On
RewriteBase /
RewriteRule ^((urllist|sitemap).*\.(xml|txt)(\.gz)?)$ vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1 [L]