dotPhoto search is online as of June 17, 2003 with a Google search that quickly searches through public albums. (Private albums will not appear in the search.)
You can search the box on the front page or, after logging into your dotPhoto account, use the search box in the bar near the top of the page.
Add quotation marks to search for a specific string of words such as "bmw charity ride".
Searching within a specific group of albums has not yet been updated, but the public search is an improvement and can find specific names if you use quotes. For instance, "John Sweet".
To find professional photos, you can also use the search on http://www.dotphotopro.com/pro/Customers.asp