Have you tried to use the search recently?? I tried and we are now limited to only searching posts within the past month. Here's the message I received on three attempts to search within the period for the past year:
UBB Message
The specified date range is too wide. The maximum date range you can search with is 1 month
UBB Message
The specified date range is too wide. The maximum date range you can search with is 1 month