Would it be possible to get the correct code for having it prepopulate into the correct fields for first and last names?

Would it be possible to get the correct code (or code structure) for having it prepopulate into the correct fields for first and last names? With the one you supply above, it puts both first and last in the first name field—I tried a bunch of different things using the instructions on the prepopulate page but none have worked.

You can add the text &name[first]={name:first}&name[last]={name:last} as a parameter to your URL so that the first name and last name fields are populated correctly.

Please note that the yellow highlighted text refers to the name of the Full Name field, so you may need to change it based on the name of the field that you want to be populated. You can identify the name of a certain field by following this guide: How to find field IDs and names.

If you need further assistance, please let us know.
Thank you.