windows update,outlook express

I am trying to unistall ie 7 beta. after installing this i been having
problems with windows update. the three are: outlook express 6 service pack
1(kb91167).(kb911564), and (kb835732). after each of these is loaded by my
automatic update..it says its sucessfully installed..then wait a min..then my
window symbol appears again ready to udate the exact same three updates. i
also have a symbol at the bottom saying my windows xp sp1 ends oct, 10.
what do i do! also my dang outlook express doesnt open anymore! when i
click on it..it says outlook express cant be started. the application was
unable to open outlook express message store. your computer may be out of
memory or your disk is full.(0x8007007e,126) also says, outlook express could
not be started because msoe.dll could not be intitialized. outlook express
may not be installed correctly. can anyone help? please