Technical problems have been plaguing the ODP servers for the last month (resulting in a large amount of downtime) and have only just got under control. However, due to this - several things are backlogged, the search database generation system being one of them.
Please be reassured that the Staff @ ODP are aware of this issue and are working it fix it, but several more items need to be 'cleared' before hand ("public page generation" being one of them). IIRC, Staff are concentrating on getting the
RDF dumps working correctly as a matter of urgency so that users can use a data partner such as
Google to search whilst the reminder of the issues are sorted.
The search database is normally generated at least once a week, but I would personally guess it won't be updated for another week to a fortnight. No "official" ETA at the moment.