They all install pretty much the same way.
1. DO NOT use the alcohol wipe. Alcohol can strip the Oleophobic coating on your screen
2. All you want to do is get ALL dust off the screen. Clean any finger prints, smudges and dust the screen with the microfiber cloth and if there is any dust, use a damp towel, if any dust remains, use a water dampened towel. Or if you have anything like iClean (a cleaner specifically made for iDevice screens) use that.
3. Once you're sure your screen is nice and clean the screen protector should have tabs on both sides to make aligning it with the openings on the phone easier to put in place. If your's doesn't, put some tape on both ends to help.
4. Typically the side with the sticky surface will have a colored wrap, which you'll remove just before you align it to your phone.
5. Take the under wrap off and very slowly, lower the screen protector to your phone, making sure you're aligning it so the speakers, home button, etc., are not going to clear the protector.
6. Lower the screen protector on your iPhone and with your finger, push in the center of the protector. It should self seal all the way.
6. If if doesn't, the squeegee they provided was provided to let you smooth out any air bubble that might remain.
7. Once it's seated and you're happy, remove the top protective coating and enjoy.