Dynamic Find Request in Script

[JAbbott]

Having problems writing a script that will find records between 2 dates.

1) Establish global fields "Start Date" & "End Date" using Show Custom Dialog ... Works fine.
2) Enter Find Mode []
From here on I have problems.  Using "Set Field" the calculations will not allow a criteria establishing a range between Start and End Dates.  Nor will the Calc. parameter in the Perform Find statement.

Any ideas?

Thanks for your help!