Or perhaps more legibly:
Code:
-- select a single task in the content panel of OF, and run
tell application id "OFOC"
tell default document
tell front document window
set oTask to (value of first selected tree of content)
tell oTask to set refNote to a reference to its note
set strLabel to "Omni Group "
set strLink to "http://www.omnigroup.com" as Unicode text
set lngChars to length of strLabel
tell refNote
insert strLabel at before paragraphs
tell characters 1 thru lngChars
tell attribute "link" of its style to set value to strLink
end tell
end tell
end tell
end tell
end tell