I'm trying to install Adobe Photoshop, I Get Error 432
That error message comes from the Sony Ebook Library software. Sony has not shared with us what the conditions are for that error message.
It sounds like in your case that you are trying to download content which is authorized to a different person (your partner?), and that may be causing the problem.
Exactly how to redownload will be dependent upon the bookstore (and their tech support). For the bookstores besides Sony, the key phrase is that "you need a new transaction id". In the URLs that they point you to there is a transaction id (orderid= in the URL), if this orderid has been previously used to download content under a different AdobeID, it will always use the license for that AdobeID. If you are using Digital Editions this will give you and error that says that the content is licensed to a different user.