Kevin, the search from current position works as expected.
One thing I couldn't seem to work out was the Restart option. I have my search scope as "All HTML Files" and I open go to roughly the middle html file and search for "the". If I click Restart (and the "Search will restart" message appears), I would have expected the search to start from the first html file listed in the book browser, but it just searches from the current position. This is the same using either ^G or clicking on the "Find" button to search. I tried the a similar experiment with the scope set to "Tabbed HTML Files" and it behaved the same way. Am I misunderstanding that the "Restart" button is expected to do?