Trying to set variables in OS X.3.9

[phatnugs]

originally i needed to set some fields from FMP to applescript variables for faxing purposes. Originally i had:

set FaxName to (get cell "Name" of current record of layout "Fax Forget Letter" of database "Invoices")

I get this error message:

Filemaker Pro got an error: Object not found. (error -1728).

I've looked everywhere for this (probably not hard enough) and wondered if you could point me in the right direction.

Thanks for the help in advance.

Mike