Upgrading trouble from 1.0 to 2.0

Sorry if this is not very clear, but this is the first time I have posted
to this list.

I have got the latest version of RT, and I have successfully installed it.
Every time I try and translate the existing database (v.1) to rt2 it comes
up with the following error:

‘openopen’ is an invalid value for status
main::MigrateTickets() called at import-1.0-to-2.0 line 72

I have checked the database and there is no entry with the status
’openopen’. The error occurs half way though the import-1.0-to-2.0 script,
after it has imported users, and in the middle of importing the tickets. It
seems to stop after ticket 148 but there is nothing discernibly wrong with
that ticket.

Has anyone else had any problems like this?