Apache no display websites

[joximu]

I meant: run the command in the shell (open a shell on your server or log into the server via ssh) and run
apache2 -s
and post here what's written on the screen...

Ok, you mean: ispcp always writes the ip into the config files from apache. Yes, because ispcp also can manage if you have several ip addresses on the same server.
If you now include your old apache vhost config file with * instead of ip adress then you have a problem I think. I'd recommend to always put the ip:port in the <vritualhost ...> thing...

but run the command I posted and tell us, what comes out...

/J