How do I upgrade from Ver. 3 to Ver. 4? I've spent a lot of time and effort in using Ver. 3 and now that I have Ver. 4 I can't seem to find any correlation from the previous version to the new one.
You can't upgrade from one version to another, because the company that developers the software doesn't offer this feature. However, the only way to have version 4 on your computer is if you'll buy it again or there could be an option offered by the developers that isn't specified on the official website. I recommend contacting the developers and if the answer is negative, buy the software again if you think it's worth it.