Errors opening product, can't open it.

[wmharrison]

thanks george, you have been very helpful. my microstudio is up and running again.

i do have another question though.
as i said before, i'm not too computer knowlege ful.
the microstudio disc that i have is an old one i guess. it has microstudio v2.315 on it. it also has vogone v2.014 and karaoke home producer v2.009 and keyrite v1.202. i have never used anything but the microstudio, but i would like to upgrade to the latest versions of all of these.
do i just purchase the latest versions? or do i have to purchase all the versions that came between?

again, any help would be much appreciated.

rick