Thank you for your post.
Use iTunes to move your database file over to FileMaker Go work area of the iPad. Then, when you launch FileMaker Go, tap the "Device" icon on the left side, as this will show the files residing on the iPad. Tap the desired file to open it.
Did you want to rename a file named "Projects", or do you have project records that you want to edit? If the former, you cannot rename a file. You would have to move this back to your desktop computer, change the name, and then copy it back to the iPad. If the latter, tap the field that contains the project name, and a keyboard will appear allowing you to edit the field contents.
Let me know if you need additional clarification.