Hey Chief,
Read the last 10+ replies before your post and you'll see I am having the same problem.
Included in the replies are some fixes that I have tried and that Hippy has suggested.
Try them, so far none have worked for me mate as I still have no score posting page, it goes default to the new damn streaming / activity page NOT index.php = index.php doesn't exist anymore!
Try your domain and then index like so =
www.mydomain.com/index.php
you'll see the index.php directs you now to the streaming page * activity.php* where ibProarcade relies upon index.php
This is the problem I think. I have tried editing the file myself to point to different locations and it takes me to all other pages including custom pages I have made, but NOT to the submit score page..
Hopefully they will fix this to work with VB v 4.2 ASAP as it does NOT work right now.