need help with msn

[schnell318]

Maybe someone can help me out. I had the old version of messenger (4.7) which came instaled with windows XP and when i downloaded messenger 6.1 it didn`t install itself like over the old one and now i have both and they don`t seem to work. The problem is i can`t uninstall version 4.7 because it doesn`t appear on the add/remove programs list.
Forgive me if i`m asking a stupid question