Rakia, if you read here, it actually said that "Clarification needed: it's not clear to a first-timer whether this should be an existing user name from the host linux system, or a new user name for use only inside the scratchbox environment.]" on steps #3.

On step #5 it mentioned "Proceed further to run the Maemo SDK installer script. This script is run as 'user' outside the scratchbox environment. "

if in step #3 I typed:

$ sudo ./maemo-scratchbox-install_5.0.sh -u adhika

can I run step #5 as user 'adhika' as well?
what does "a user outside scratchbox environment" means?

Thank you,
Adhika