Hi James,
Sorry about this delayed response... I was really hoping that someone else who's more familiar with MS OE/Entourage would jump in to offer advice.
I'm not sure about how to extract an email's subject line in MS Enoturage. You could try searching at
AppleScript Central, which has several MS OE/Entourage scripts (actually, with any luck, you may even find the exact script you're looking for).
In general though, assuming that you have extracted the subject-line -- and have truncated it if necessary to ensure that it contains no more than 31 chars (the length-limit of a folder-name in Mac OS 9.x or earlier) -- then, the "making a new folder" part isn't hard. For example, you could 'tell app "Finder" / make new folder at (folder "
some path") with properties {name:"
the subject-line"} / end tell'.
Regards, and good luck,
--Paul