How do I get my old paid version of Premiere?

Many years ago when I first got my Mac, I bought Premiere. I used it for a while but then I found Final Cut X, and liked it so much that I got a bit carried away and deleted Premiere. Silly move, really.

Well, the other day I was searching my Mac for old files and I found the serial number that I had for Premiere, saved as an rtf.

So, I thought I might as well go back and get Premiere again, since I already owned it, and add it to my NLEs. Unfortunately, I found that it's no longer available, having been replaced by Premiere Pro.

Now, I don't want Premiere enough to buy a whole new version, I just want my old one to use occasionally when I need some of its features. But I've read elsewhere here that you can't get Premiere ever again, even if you've already bought and paid for it..

Is this in fact the case? Is there any way to get that previous purchased program back? 

Thanks.