Well, great news everyone!
I finally found their "Contact Us" email address on their site (with the help of Google Translation as well) here:
bbs.mydigit.cn contact page
So, I sent an email to the email address and said that I wanted to contribute and help with the site but I don't have an invitation code. Luckily, I got an email back with an invitation code! So
now I'm registered.
I hope to contribute and help with the site. If anyone would like to help with the site and also I'm sure will find the site helpful as well, may want to consider sending an email and writing it in a way that will benefit their site as well as benefiting you.
Hope that helps.
Now I'm off to look through the million plus forum posts and try to make my way through that. I hope to help them as welll but also to bring some valuable information, tools and firmware to MyMPx.org as well which will help everyone else as well.