On the first screen shot you posted, where Level 0 is highlighted in green meaning you have already obtained that level, left click on the Get Access box in the Level 1 area. You will be asked a few questions, like a quiz, and if you pass/qualify you will be given Level 1 permissions.
It would be helpful to also read the site's User Manual & FAQ at the bottom of the page under the General Info column.
"They've done studies, you know. Sixty percent of the time it works every time." - Brian Fantana from the movie Anchorman