As far as I know... My alternate helmet for Akron contained a created "throwback" logo and since I only have one modem I DL'd my teambuilder team, tested it andthe helmet looked great! I then took the modem back to the computer and went to play again later and it gave an error message about not being able to find the logo, then placed the Round EA sports logo on the helmet? The jersey was okay but the logo was missing.
The logos that you select from "choose existing" are okay as they are on the disc already.
This is a pretty big issue for me only having one modem.