I have a lot of arcview .apr file. I need to open & edit in ArcMap 9.3, but the original project file is saved in .apr. I tried to use "import from arcview project". The project file can be open finally, but some data source was broken. I cannot trace the original data file, as the layer name was assigned by anothers. How can I trace the data file and re-link it in Arcmap 9.3?