i say this post and was scrolling threw thinking wheres forevrbumpin.....the t-line man.
mr bumpin when you install google sketchup right click the .exe file then click the folder compadablity and select xp. if it installs but wont run then go to (im quessing) my computer then local disk c then program files then find google sketchup open that folder inside you should find the .exe to launch sketchup. xp compadibile (sorry cant spell) right click, properties, compadibility, select xp. close that window then try to run the program. if that doesnt work then ask yourself " why vista ? "
if you want to run xp i can install it for you man. you dont need a activation number or validation bs. hit me up bro if you need a hand.