First, You'll find there's been a lot of changes to what filemaker can do. I'd download the free trial install of Filemaker and spend some time with it to learn some of it's new capabilities.
Second, you'll want to read Knowledge Base Article #7084 to learn more about the upgrade process
Third, since you won't be able to simply open such an old version of filemaker with FMP 10 and have it convert, you'll probably have to export the data from your current filemaker files as tab or csv files and then import them into a new FMP 10 file. That brings the data in but you'll have to recreate your layouts from scratch.