If you log in using the first method, you will be taken straight to the Match Menu for that game. If you log in using the second method (through the URL or login box), you will see the following screen.
Enter a date range for which you wish to view matches. Alternately, you can specify to view matches played at a certain venue or in a certain competition.
Click on Show Matches.
All matches within your search range will be shown.
Click on Enter Results corresponding to the match you wish to enter results for. The Match Menu for that game will appear.