Does X5 sp3 also contain sp1 and sp2 ?

Recently I installed on my computer (Win XP) another hard disc with Win 7/64 OS.

Now I wish to install Corel X5 on the new hard disc. My question is: After installing the downloaded version of X5, shall I install sp1, sp2, and sp3, or does sp3 include the previous SPs.

Question 2: Does my license also good for the second OS?