[tpearl5]

I'm not familiar with the classifieds mod, but it sounds like dbseo is redirecting you because the rewrite rule you have in there is producing a 404. What happens when you turn that feature off in deseo?

This rule:
RewriteRule ^classifieds/([^/]*)/ ./ozzmodz_classifieds.php?do=main&catid=$1 [L,NC]
for example, is saying "match classifieds/whatever/ and rewrite to /ozzmodz_classifieds.php?do=main&catid=whatever

It looks like ozzmodz_classifieds.php?do=main&catid= is looking for a number, but that regex will match and replace with anything, including words.