Msn

Hello,
k so i got a computer it is a samsung screen and a compac tower.
it will Not let me download the new msn or even go on the really really really old msn either when i try to go on the old msn it does this

" singing into network serive has failed because serivce is not compatable to the with this verison of the program"

and when i go ot hotmail.com or msn.con to downlod the new msn it says this


the ordinal 266 could not be located in the dynamic link library msi.dll.

i am so confused do i need to download a program for it to work?