Enviroment:
Centos 6.3 basic install
Apache/2.2.15


Installation steps:

#Install required software
yum -y install httpd httpd-devel make glib2-devel libpng-devel libjpeg-devel giflib-devel libtiff-devel libX11-devel gcc* fontconfig-devel bison gettext bzip2 libtool automake autoconf wget unzip

#directory we will be installing mono in
mkdir -p /opt/mono 

cd /tmp

#Download & extract source
wget http://download.mono-project.com/sources/mono/mono-2.10.2.tar.bz2
wget http://download.mono-project.com/sources/xsp/xsp-2.10.2.tar.bz2
wget http://download.mono-project.com/sources/mod_mono/mod_mono-2.10.tar.bz2
wget http://download.mono-project.com/sources/libgdiplus/libgdiplus-2.10.tar.bz2

tar -xjf mono-2.10.2.tar.bz2
tar -xjf xsp-2.10.2.tar.bz2
tar -xjf mod_mono-2.10.tar.bz2
tar -xjf libgdiplus-2.10.tar.bz2

#compile and install libgdiplus
cd libgdiplus-2.10
./configure --prefix=/opt/mono
make ; make install

#compile and install mono
cd ../mono-2.10.2
./configure  --prefix=/opt/mono --with-libgdiplus=/opt/mono
make ; make install

#Set enviroment vars(make sure to also modify ~/.bash_profile)
export PATH=$PATH:/opt/mono/bin
export PKG_CONFIG_PATH=/opt/mono/lib/pkgconfig

#compile and install xsp
cd ../xsp-2.10.2
./configure --prefix=/opt/mono
make ; make install

#compile and install mod_mono
cd ../mod_mono-2.10
./configure --prefix=/opt/mono --with-mono-prefix=/opt/mono
make ; make install


mv /etc/httpd/conf/mod_mono.conf /etc/httpd/conf.d/


#download ccnet
mkdir /tmp/ccnet/
cd /tmp/ccnet
wget http://build.nauck-it.de/download/CruiseControl.NET-dev/1.9.26.0/CruiseControl.NET-1.9.26.0.zip
unzip CruiseControl.NET-1.9.26.0.zip
cp -R ../ccnet /var/www/html

echo "MonoServerPath \"/opt/mono/bin/mod-mono-server4\"" >> /etc/httpd/conf.d/mod_mono.conf

/etc/init.d/httpd/restart