>I want something like this:
>if the error number is #
>loop

And I meant that:

scan
  on error lHadError = .t.
  inser into ...
  on error
  if m.lHadError
    m.lHadError = .f.
    aerror(aErr)
    if aErr = err#
    ...
    endif
  endif
endscan

PS: You have VFP8. Then you might want to utilize try..catch..endtry instead.
Cetin