The latest update on the Dave Lagana/Vince Russo/TNA creative situation courtesy of PWInsider.com is that Lagana is NOT part of the organization's creative team. He will, however, at the moment, be providing feedback when necessary regarding TNA's product. Lagana will also be handling some of the production of backstage segments. Furthermore, despite rumors, Lagana did not write any scripts for this week's edition of Impact Wrestling.
Regarding Vince Russo, the general rumor continues to be that he is no longer part of the organization in any fashion. However, Russo had a contract with TNA and sources are reporting that he won't just be "free and clear" from the organization.
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