Hello norma,
The electronic help has an old screen shot. We removed those options from the import batch as they were intended to only apply when you were importing account information. I've made a note to fix that in the next release. In the interim, you can ignore the documentation regarding those options.
This import should "just work" if you leave the options unchanged and just point the import at the file created when you export the transactions from Paymate.
Did you load the export file into another program to "look at it" before you imported it into Ledger? Might you have saved it back and altered its format inadvertantly?
Could you let us know exactly which version of Ledger you are running? Fixes have been made to importing transactions as we have created new releases. The version information is found in the "Help | About" selection in Ledger.
Thanks (and Happy New Year)