How do I add Google earth coordinates?

I've tried to add coordinates by copy/pasting from the "get info" window of a Google Earth map pin marker to the lat/lon boxes in PictureSync. First there is an Applescript error and then the coordinates disappear. If I switch to another picture and back again, only the longitude remains and it has been altered to something unrecognizable. Also, "Get location from Google Earth" does nothing for the picture I have tried to geotag nor for others that I haven't touched yet.

I have tried ordinary coordinates (DMS) and decimal coordinates, with the same result.

I have the latest version of both applications.

Any suggestions?

Intel Macbook Pro core 2 Duo running Mac OSX10.5.6