1) Grab the packages from http://www.mono-project.com/Downloads
2) Uninstall the packages in this given order:
rpm -e mod_mono
rpm -e xsp
rpm -e mono-data
rpm -e bytefx-data-mysql
rpm -e mono-winforms
rpm -e mono-web
rpm -e mono-data
rpm -e mono-locale-extras
rpm -e mono-core
3) install the same packages in reverse order by calling rpm -i

jó, de miért van az egész angolul? / Good, but why is all in English?
because in Engish the blog can reach much more ppl.