Hi Natali,
As you have purchased a "lesser" version you won't be able to open your file.
In most cases you can't get a file from a higher version to a lower version.
So you will either need to contact Reckon to get them to help you to purchase the correct version (they will do a pro rata on what you have already paid), or re-enter your data.
Feel free to email me directly if you need any further assistance.
Kind regards,
Sally McIntosh (sally@samsolutions.com.au)