A butchered Apache2 Installation

[John Orford <John.Orford@Student.Uni-Magdeburg.DE>]

I accidentally / stupidly butchered my Apache2 installation.

I can neither install apache2-mpm-worker over the old install or remove it - 
I've tried apt-get remove..., apt-get -f install and dpkg.

Can I uninstall it manually?  Or somehow repair it.

The error message from "apt-get remove apache2-mpm-worker" is below.

Hope you guys can help.

John
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Stopping web server: Apache2apache2: could not open document config file 
/etc/apache2/apache2.conf
invoke-rc.d: initscript apache2, action "stop" failed.
dpkg: error processing apache2-mpm-worker (--remove):
 subprocess pre-removal script returned error exit status 1
Starting web server: Apache2apache2: could not open document config file 
/etc/apache2/apache2.conf
invoke-rc.d: initscript apache2, action "start" failed.
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 apache2-mpm-worker
E: Sub-process /usr/bin/dpkg returned an error code (1)