Apple

set toattach to "Macintosh HD:Users:" & shortname & ":Desktop:foo.txt" as alias

then Entourage complains with its "some script is trying to send a message" dialogue

last nights version of this worked:

tell application "System Events"
set shortname to name of current user
set fullName to full name of current user
end tell

set igetit to "fooo"

set toattach to "Macintosh HD:Users:" & shortname & ":Desktop:foo.txt"
set fileattach to alias of toattach
set email_subject to "foo sub"
set email_body to "foo body"
set itemail to "email@hidden"
set emailAddress to "email@hidden"

tell application "Microsoft Entourage"
make new outgoing message with properties {recipient:emailAddress, BCC recipients:itemail, subject:email_subject, content:"You have been moved from Apple Mail to Entourage, Please only use Entourage for all your email and calendaring. You answered:" & igetit, attachment:toattach, has html:true}
set messID to the result
send messID
end tell

AS returns: can't get alias of "Macintosh HD:Users:tp3766:Desktop:foo.txt

Event Log shows:

"Can't get alias of \"Macintosh HD:Users:tp3766:Desktop:foo.txt\"."

File foo.txt does exist on the desktop at the path specified.