OK, then - that's your first key element.
1. Via your Arvixe control panel, make a backup of your live database, download it, and restore it to your local instance of SQL server, using the same database name.
2. Since you're using the deployable version and not the source code, you can probably get by with downloading all files directly from your Arvixe website to your local instance - update your SQL connection string as needed for your local environment.
3. Test your local instance to make sure everything's working as it's supposed to; no use in trying to upgrade something that's not working correctly.
4. From here, follow the instructions in the article "Upgrading from Previous Versions", with the addition of adding your updated Forms Wizard Pro. If you spot any issues with your layout, refer to "Important Skin Changes", to troubleshoot any issues.
5. Once you've run your upgrades, and confirmed everything's working all right, you can re-deploy your latest local version to your Arvixe hosting account. You can either upload a backup of your local database, and restore it, or run the upgrade scripts manually - your choice.
Let me know if you have any issues with these steps - good luck!