Client and Server Synchronization

We need a simple web application for a small community of field biologists currently collecting geo-referenced biodiversity records in a set of MS Access databases, and so far synchronizing with MS Access Replication. Phase 1 of this project will be three-fold: 1- Only two Tables will be hosted for download, upload and bidirectional sync. (Table 1 = Observation Data, LatLong, SpeciesID, Memo's , -one-to-many- to Table 2 storing the related pictures path on C:, picture height/width, thumbs and legend). No editing needed, just synchronizing. 2- Individual folders will be created to store the related pictures, with option to create new folders for new users when needed. 3- A simple, user-friendly home page, with registration box and a limited set of synchronization options. We remain open for the best choice of DB format. Our Internet connections on the field are poor. If succesful, we will ask you for more with other mdb files having similar patterns, and later possibly more sophisticated Taxonomy data display and maps. The Access project is already completed using ESRI controls. GoogleMap an option.