The update on the blog post was on March 11th and they said it should be solved by the 16th.
The link you posted was originally put up 4 March, which means we are up to the second "next Monday".

If they change the update again on the 18th, but leave the wording Next Monday, we're still going nowhere. "We will provide a further update on Monday 16th March if we have not resolved the problem before then."
All my photos are just like yours. Ready and waiting, but not for sale. My oldest one was uploaded March 3rd and ready for 11 days. In other words, I got 16 new photos reviewed faster than anything has changed from Ready to For Sale.

It's 6am right now in London. Fingers crossed.
Edit Today: UPDATED 16TH March: The search engine will update later today and changes will be reflected tomorrow, we have done some final checks and we are now ready to go ahead. Many thanks for your patience, we appreciate it has been a frustrating time and hopefully normal service has now been resumed.
2am UK time, ON SALE!