Also, my test database defaults to InnoDB, and the following tables were created as such since the ENGINE= arguments were missing from the create table calls:

${PREFIX}cattemp
${PREFIX}filetemp
${PREFIX}forumtemp
${PREFIX}grouptemp
${PREFIX}importconfig
${PREFIX}memtemp
${PREFIX}polltemp
${PREFIX}reserved_names
${PREFIX}topic_views

I assume the *temp ones will be dropped after import, and I'll change the others to MyISAM.