I'll need to install mono 2.10 (latest as today) to test a C# system on a new SME8.
I have been able to locate rpm and install them on SME8. but that's all... I'm lost and not sure even if it's working.
To anyone willing to help using this on a TEST SERVER running SME8:
1) download rpms from mono site (
http://ftp.novell.com/pub/mono/download-stable/RHEL_5/i386/ and
http://ftp.novell.com/pub/mono/download-stable/RHEL_5/noarch/) or from my own server (
http://guepardo.marasca.net.br/mono210/)
2) install using:
yum localinstall \
mono-addon-core-2.10.2-5.1.i386.rpm \
mono-addon-data-2.10.2-5.1.i386.rpm \
mono-addon-data-sqlite-2.10.2-5.1.i386.rpm \
mono-addon-web-2.10.2-5.1.i386.rpm \
mono-addon-debugger-2.10-6.11.i386.rpm \
mono-addon-xsp-2.10-5.7.noarch.rpm \
mod_mono-addon-2.10-6.9.i386.rpm
3) follow instructions from
http://wiki.contribs.org/Mono about to modify apache
4) restart apache using: service httpd-e-smith restart
now tell me how to verify it's working! 
I did this:
1) create an ibay name "mono"
2) copy test content to there:
cp -r /opt/novell/mono/lib/xsp/test/* /home/e-smith/files/ibays/mono/html/
3) tryed to access using browser: http://<myserver_ip>/mono/
and got an error:
Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
so it appears to be nott working !

I search http error.log and found this:
[Sat Oct 15 09:29:51 2011] [notice] Apache configured -- resuming normal operations
[Sat Oct 15 09:30:35 2011] [error] Failed running '/usr/bin/mod-mono-server2 --filename /tmp/mod_mono_server_global --nonstop --master (null) (null) (null) (null) (null) (null) (null) (null)'. Reason: No such file or directory
[Sat Oct 15 09:30:37 2011] [error] Failed running '/usr/bin/mod-mono-server2 --filename /tmp/mod_mono_server_global --nonstop --master (null) (null) (null) (null) (null) (null) (null) (null)'. Reason: No such file or directory
[Sat Oct 15 09:30:39 2011] [error] Failed running '/usr/bin/mod-mono-server2 --filename /tmp/mod_mono_server_global --nonstop --master (null) (null) (null) (null) (null) (null) (null) (null)'. Reason: No such file or directory
[Sat Oct 15 09:30:41 2011] [error] Failed to connect to mod-mono-server after several attempts to spawn the process.
[root@vb-sme8 mono210]#
but it do not help me anymore.
But if I install mono 1.2.4 (old!) this page works:
to install mono 1.2.4 :
yum --enablerepo=extras install mono-core mono-web mono-data mod_mono xsp
and follow instructions from wiki (see above) to modify apache, restart apache and everything appears to work.
after test, to remove mono 1.2.4
[root@vb-sme8 ~]# yum remove mono-core mod_mono
Any help is welcome.
Regards
Jáder