why do you need one? it is already built in to the install script for phpbb3.
basically, the only thing you convert is the database. none of the files from phpbb2 are used in phpbb3.
the same is true of upgrading from 3.0 to 3.1
all new files and upgrading the database.
except for the config.php file in both cases.
I'm baaaaaccckkkk. still doing work on donation basis. PM your needs.
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