The installer orders you to replace code that is not there anymore: usercp.php step 2/2, user.php step 1/4. Now talon3dhq told us on page 18 (&perpage=15,
post 262) how the new 2.2.6 code snippets looks like. I found them and applied bira's changes - not by replacing, but by complementing as seemed logical to me. Result: parse errors. Unfortunately, my PHP knowledge is limited. I'm looking for someone who goes over it, maybe even re-releases this hack for 2.2.6 - bira didn't visit this board since the beginning of the year.
As always, sorry for my clumsy English. And thanks a lot for showing interest!