Note: How to Make a New Project INI file for InfoSewer
Step 1: Make a new InfoSewer Project as a New Empty Map and use the ArcGIS Default as the spatial reference.
Step 2: Save your new empty model.
Step 3: Copy your old model DB folder to the new MyEmptyModel DB folder
Step 4: Open up the mxd file MyEmptyModel and Initialize it – it should be a valid model now.
via Blogger http://www.swmm5.net/2013/07/how-to-make-new-project-ini-file-for.html