Upgrade to IPS Suite 4 problem

I had IP Board v3.4.6 (nulled version), so I wanted to upgrade it to IPS Community Suite 4.1.16.1 (nulled version). Everything was ok with an upgrade, but installation made new tables inside my base. So now I have 'core_members' (IPS 4 members table) with only 1 member and 'members' (from IPB 3) with all my members from forum before upgrade. How can I merge that so that I have all my members on newer version of my board (inside 'core_members' table)?

Same thing with posts, topics... I want them transfered into new tables.
I hope that someone can solve my problem, thank You in advance!