Sorry for the delay.
You need to update one by one version.
First you need to update to 1.0.15, then to 1.0.16 and then the major update to 2.0.
The update files are not available for download anymore, you can pm me with the admin info's and I will check with the developers if they can do the update on your site.
Kindness costs the least, but is worth the most!