1. Begin a new game of FOF2k4
2. Click on the MP Window
3. Under Participant Functions, click Enter New Career
4. For the League ID number, enter '00856000'
5. Choose the team assigned to you by the league
6. Click Begin without draft
7. Delete the file the "Q" file it tells you to send to your commish
8. Download the league file
9. Unzip it your leagues folder in the FOF2k4 folder
10. Load FOF2k4
11. Open the MP Window
12. Click Load Game
13. Select "00856000"
14. Enjoy!

There is also batch files that you can set-up to keep your NFL and CFL names seperate. For directions on that, see 3ric's thread by clicking here