I'm assuming you're talking about pics like the one I use in my dynasty.
1. Go into instant replay, and click the left stick on the particular scene you want to save a snapshot.
2. Go back to the NCAA home screen, and go to My Legacy I think it's called. Upload your photo.
3. Go to
www.easports.com. Make sure you upload before you go to easports.com, sometimes it gets wonky. Log in at the top right, then go to My Player Hub. Once there, go to media, and go to pictures. Click on the pic you want. When it is maximized to the full picture, right-click and save the image to your computer.
4. Open up Photoshop, and open the picture. Hit ctrl+A, then go to Edit->Stroke, and add your border. Save as a jpeg, gif, png, whatever, and upload to a site of your choice.