Since you didn't exactly put "Open" at 12:00 exactly,

I hope you recorded the time you put up the status and take it into an account.
So that it's fair to people who follows the rule and submitted after the status on the web is changed as instructed.
rather than rewarding to the people who submitted closest to noon.

Well considering they stated that they wouldn't accept anything before the red open at the top I highly doubt anything submitted before that would be taken into account. Even though they said an opening would be at noon I feel the red text supersedes the time frame difference. Also on their twitter they did mention they were running a little late. Either way it's FCFS and considering they're still open we're probably good! ^_^

How many slots will you have?

There were 10 slot. But that has expired. Sorry；_；

Will you open for commissions regularly? I would like to try next time. :)