Snoopy the steps are the same whether its any forum you switch from. The name of your forum importer would change surely yes. But thats about it everything else on that list is status quo to be successful. ------
a. your import your forum data to the new forum.
b. delete usergroups in your photopost product usergroups table.
c. reinstall the photopost application to integrate with the new forum/
thats the basic steps.
4. This is why you clear the photopost usergroups table. On your reinstall and integration into your new forum we grab all the phpbb3 usergroups and you set permissions accordingly
5. This is talking about your reviewpost database and table prefix. If you dont change any reviewpost database settings then it is simply saying your not going to delete your old reviewpost data. The install is essentially updating your reviewpost to the new integration urls etc etc.
Now if your saying you dont need to use the userfix script okay fine but I have not known an importer yet that does not change userids. Reason being if say in
vb you have 2000 users and you have deleted 800 with only 1200 left the importer is not going to import data with grabs or holes its going to use the next available id. Now if phpbb3 doesnt then dont do that step fine.