Adobe Pro X download no in my purchase history.

I purchased Adobe back when it was Adobe 7 (2005!) and upgraded regularly up to Adobe 10.  I now have a surface pro 3 & want to install Adobe X Pro on it, but cannot find the purchase or download link in my Adobe online account. I don't want Adobe DC as I cannot justify the $180  a year subscription & I don't want to learn a whole new program as I only use X Pro only 2-3 times a month,  How do I install my purchased Adobe X Pro? I realize support may be discontinued for earlier products - but there is nothing I could find in the purchase/user agreement that stipulates I would not able to install Pro X when newer platforms are developed.  I purchased it, I want to install it on my new computer as I am donating the old one to a child in need  as a "bare bone" learning computer.