Is it possible that you already had a table named "products" in your database? If so the preset wouldn't be able to create the table and the columns would remain from the table you already had instead of the one from the preset.
Try renaming the table you have in your database now by running a query like:
RENAME products TO myproducts
Then run the wizard again. That should allow it to create the correct database structure from the preset. At that point you can add more columns if you need them.