Ran into this too, moving from the Instict as well. Did some research online to discover the Evo isnt compatible with the Contact backups that the Instinct ran. Apparently there is a way to export them to a text file from your account page on the Sprint website, but ONLY if you do so before the Instinct is de-activited...once the Evo is activated, that portion of the website is removed, leaving the only option to take your Insinct and Evo to a Sprint store to have them transferred.
Thats what I ended up doing...no charge...no questions asked...took them 10 minutes or so.
Here are the instructions of how to do it before deactivating your Instinct.
You need to go to your "Sprint Mobile Sync"(Contacts) page(from your account page at sprint.com) and "Export" your contacts to your PC in .csv format. Once you deactivate your Instinct you lose access to the Mobile Sync page alltogether and won't be able to get to your contacts. ...Take the .csv file and "Import" it to your Google account and you will be ready to sync it to your EVO or most of Sprint's new smartphones.
But if your Instinct is already deactivated you can bluetooth them from your deactivated Instinct to your new EVO.
Check out a fun infographic that teaches you how to increase storage, enhance security, improve battery life and clean your device.