Seems to be working here after adding a Tinderbox 8 entry in Hook preferences with a Get Name script:
tell application "Tinderbox 8"
tell front document
set xs to its selection
if {} ≠ xs then
value of (attribute "Name" of (item 1 of xs))
else
name of it
end if
end tell
end tell
and a Get Address script:
tell application "Tinderbox 8"
tell front document
set xs to its selection
if {} ≠ xs then
set target to item 1 of xs
else
set target to it
end if
return value of (attribute "NoteURL" of target)
end tell
end tell