rsgallery2 upgrade path

I had upgraded my Joomla site to 1.5 and had previous had been using the RSgallery2 photo gallery and upgraded that as well for my site but it is not showing the old galleries and photos. I imagine this should be just a simple file path change. Please only bid on this project if you are very familiar with RSgallery2 and have upgraded the gallery to Joomla 1.5 before. My budget is maximum of $30.