Tim-
AFAIK it is:
<cfquery name="getBooks" datasource="publishers">
select pub.dbo.publisherInfo.name, books.dbo.titles.title
from pub.dbo.publisherInfo, books.dbo.titles
</cfquery>
You do the name of the datasource first, then "dbo", then the table name, then the column name. You'll want to spell that all out in the "from" clause as well.
HTH,
geoff