[Admin]

For post #6:
You already ran the script, so some users are already in the user table. Empty the table (using phpMyAdmin) and run the script again.
UNLESS you already had users before trying to import. In that case the script won't work.

For post #7:
The script is taking too much time to execute, so stick this line:

PHP Code:

set_time_limit(0); 


right at the beginning, after <?php.