install new ver. 2.4 microstudio

[Ben Dascani]

I am not sure if I have installed the latest update ver. 2.4 correctly.I uninstalled ver. 2.315 and installed 2.4. The old microstudio disc icon pops back on my desktop and when I click the new 2.4 icon on the desktop I keep getting the installwizard.Is this normal or OK.The old icon is in my programs but not the new 2.4 ver. Is this OK. I have received error 1628 failed to complete installation, and install shield 1607 unable to install;installshield scripting runtime. When I click the old icon the program opens. Do I have 2.4 installed? When I open the old microstudio is it the new ver. 2.4?