Make sure on your insert record statement, that you select the "server file" option under WA Upload Files bindings.
If you double click your insert record (I am assuming this a DW insert behavior)... you should see the database tables on the left and the values that each receives on the right of the dialogue box.
If you select the "dynamic" option when choosing the variable for the image field in your table, you should then see all the dynamic bindings available to you. In that list, you should see something that looks like:
WA Upload Files Global Status
WA Upload Files (imageFile)
If you select the second one - with the form field name beside it and expand it, you should see several dynamic options to bind to your insert or update record. You should then select the one that says SERVER FILE to correctly identify the image name in your database.
Let me know if that helps any.