please have a look there (one of Adobe#s "terms and conditions"):
So, simply sign in with your Adobe ID to creative.adobe.com and download the software. Same as you did on your first PC.
I have a cd installed adabe acrobat pro 8 version on an old pc and cant install on new pc with same serial number
i dont want the test version....i already have a license on the old pc, i just dont know how to transfer the license