Orthophotos in ECW with unsupported coordinate system

Hi

I have a total ortho photo coverage of Denmark in ECW format in the old danish coordinate system S34S. Now we are moving to a new coordinate system so we need to reproject the rasterfiles. Unfortunally the ECW files are marked with a coordinate system S34SRX so the raster manager cannot reconized them.

I have tried to copy the S34S coordinate system in the Coordinatesystem manager with the new name S34SRX --but that does not change a thing.

Are there a way in VBA to attach these rasterfiles reprojected and setting the coordinate system correct ? As far as I can see in the VBA helpfile  there is no methodes for attaching rasters reprojected.

Second question

How to make this coverage an indexed Source ?