[eluser]Chris Williams[/eluser]
Once I stepped through to find out what broke, there wasn't much to do.
Set paths in search.php (or if you rename it to avoid conflicts)
Code:
$include_dir = SPHIDER_PATH . "/include";
$template_dir = SPHIDER_PATH . "/templates";
$settings_dir = SPHIDER_PATH . "/settings";
$language_dir = SPHIDER_PATH . "/languages";
And some variables I had to hardcode because it was faster. search=1, mysql_table_prefix, domain, per_page, and entities needs to be redefined.
In all, I'm sure I missed a part where all these are set elsewhere. Since it works, I'm not messing with it any more. :-)