For http://scm.moodleace.com, I've created a user ID and password for you. I've already emailed it to your gmail account.
What next after looking through the various courses on MoodleAce.com?
I suppose you could also sign up for a free Moodle account from one of the many free hosting providers mentioned in this post:
The other option is to sign up for a low-cost shared hosting plan where you can install Moodle on your own using either Fantastico or CPanel. Downside is that you may have to buy your own domain name (e.g, www.gonzaloreina.com) and spend some money for the hosting. Maybe your school can sponser the hosting (you have to talk to your Principal). The good news is that way you can have your own Moodle site as a test and learning site. You can install your own third-party activities to extend the functionality of the standard
Moodle. However, you may find the shared hosting option slow due to Moodle being quite resource hungry and that shared hosting is not the way to go for a medium Moodle class size.
All the BEST in your Moodle quest and adventure.