I can't seem to get BI to install properly if i have other copies of RTW elsewhere on my computer...

When i put in the BI disk, i don't get the option of WHERE i want to install it, or which game i want to install it to... It automatically just goes to my Activision folder...

Also once i've installed BI and the BI folder appears in my Activiion folder, when i go into RTW and look at what version i have, it says 1.2 all the time, not 1.5... I thought BI updated RTW to 1.5 automatically when you install BI?