Alan
1. There is another option, you can modify the outlook Search that if a User clicks on "Browser Search" he will be transferred to this Advanced Search.
You can do this the following way:
Open up searcho2k.xsl (located in EnterpriseVault\WebApp\v7.5.1250\En (EV2007 SP1) or just search for it...
Search for this term:
Searchurl = url + "search.asp";
And add an ?adcanved befinde search.asp like this:
Searchurl = url + "search.asp?advanced";
Just remember to edit the file when you update EV to a new Version.
2. This is correct.
Outlook does only search in the Placeholder data (depending on what you have configured, this could be the whole body text).
Cheers
Michel