When USE_PATH_INFO is true (which appears to be the
default in 1.3.3 then the search URL appears as:
...index.php/TitleSearch?auto_redirect=1&s=SearchTerm
when USE_PATH_INFO is false this becomes:
...index.php?auto_redirect=1&s=SearchTerm
and the page returned is always the HomePage
I originally turned USE_PATH_INFO to false because I
had legacy pages that used forward slashes in the page
name.