There are two ways to use the value in a variable in a scripted find. With stored find criteria (not my first choice), you can refer directly to the variable. You cannot, however combine the value in the variable with other terms such as < to create an expression.
You can also do this (my first choice):
Set Variable [$Datatofind ; value: test::datatofind ]
Enter Find mode 
Set field [test::datatofind ; $DatatoFind ]
Set Error Capture [on]
Think of Set variable as the step to use in place of copy and Set field as the step to use in place of Paste.
For more examples of scripted finds: Scripted Find Examples
Thanks for the reply. Once I figured out how to place the information correctly into the Set field step it script works as it should.
Now that I've accomplished that part, can you teach me how to "List" the data from all the records in a found set. My end goal is to
email a order list to our distributor (Item, qty, sku...) I was able to get the data from the first record only.
To list all the data from the found set, use either list or table view.
I can view the data. I'm trying to "use" all the data from each record to populate an email. For Example
Item - Tires Qty - 4 Sku - T78-16
Item - Wipers Qty - 2 Sku - WSH-W-14
Item - Luge Nuts Qty - 20 Sku - LN-2785
What version of FileMaker are you using? There's a nifty summary field you can use if you have FileMaker 13.
I have 13 Advanced
Note: In all versions of fileMaker, it may be possible to set up a relationship that matches to these records and then there are wasy to use the List function to get a list of data from these records.
In FileMaker 12 and 13, ExecuteSQL might be used.
In FIleMaker 13, there's also a new kind of summary field, the "list of" summary field that produces a list of the data in a specified field with a return separating each item. To use it in your case, you can define a calculation field that combines the data that you want from a single record in a single field using the & operator to concatenate the data and then you can use this new summary field to "list" that calculation field.
PhilModJunk, Thanks for your help, I got it working using the New "list summary field".