Classified Ad Script Version Upgrade

I require someone with a very good knowledge of PHP to upgrade a classified ad script I have running on my site to the latest version. The software currently running on the site that needs upgrading is GeoClassifieds Enterprise ([[login to view URL]][1]) - currently the site is running version 3.9.1 and needs upgrading to version 4.0.5. This would normally be a very straight forward process, but I've had a video module added/coded into the old 3.9.1 version. This video module is not a standard feature of either version so a fair bit of custom coding has been done. I need someone who is able to update the site to 4.0.5 version while still preserving the video module coding. ## Deliverables All relevant files for the upgrade will be provided to the winning bidder. Please note the site is not currently being promoted or running any ads so it's ok if the site is down for a bit during the upgrade process.