those holes in your ski will only work for that type of binding.
yes. you need new holes for new bindings. that requires moving the new bidings forward or backward of the existing screws.
there is "Quiver Killer Inserts" you can instal into your old binding holes, so they can be re-used. similar to how snowboarding bindings work. link above.
best of luck. most people and skiers are retarded about bindings. knowledge is power