Questions about moving a restoring a dump from 8.1.11 to 8.2.16

Hi!

    I shut down the database to upgrade from 8.1.11 to 8.2.16. We use pg_dump

to dump and psql with the < sign to restore. But I had a problem with restoring the

dump. I got a

ERROR:  function "snb_ru_init(internal)" does not exist

CONTEXT:  COPY pg_ts_dict, line 3, column dict_init: "snb_ru_init(internal)"

and I found this page on how to fix it:

http://www.penguinlinux.com/blog/lamp/tsearch2-with-postgresql-82-errors/

Except I don't understand the steps that author has laid out.  Especially

step 3.

Could some step me through this or do anybody have a better way to upgrade to

postgres 8.2.16?

Thanks,

Tino