In addition to reading the raw Ag Leader data off of the PC Card, the program can also read Ag Leader that is in the Ag Leader Basic or Advanced formats. You can save data in these formats within the AL-2000 program.
The one type of Ag Leader data that can not currently be read is the Ag Leader Site Verification data (for tracking varieties and other information while planting). However, we will have an update out this Summer that will allow the reading of this data. With this version in addition to mapping yield and moisture, you will be able to map elevation, loads (which is what you use for variety names) and any other information that the Ag Leader records.
If you want, I'll be glad to take a look at your data for you. Just e-mail it to email@example.com along with a short explanation.