Oooh, good luck with that loooong reach back to 2007. Especially when Alumin8 hasn't posted on the forums in well over a year...
If you don't get an answer here, try the Airfoums Classifieds, "Parts Wanted". It's free, and uses the same login info you use to get on here.
Look up to the top of the page, right below the big blue word "Forums".
Oh, and if THAT doesn't work, Google Colaw RV Parts for the phone number for them. Their website is dead, but they still answer the phone.