I have a WSS site (created within SPS2003, it's not stand-alone), and
when I search the site from the WSS home page, I get no results, but
I get a link to search at the SPS level for the same terms. The
ensuing SPS search returns content that I expect within the original
WSS site.
If I am on a doclib page on this WSS site, and I search for known
content (for instance, one of the filenames in the doclib itself) I
get no results, but I don't get a "try your search from the portal"
link.
Maybe I'm making the wrong assumption, but it would seem that you
should be able to search from a WSS site home page and return results
only from that site (auto-scoping the search, if you will). And the
same can be said of searching on a doclib or list page: you would
expect results just from your current context.
Do I possibly have a configuration error? I get the same results for
indexed XLSs or PDFs, by the way (that's as many filetypes as I
wanted to try before posting).