Small update... (includes Borders-branded Library desktop software which has a newer version string than the official software).
Sony Reader PRS-500 Firmware Updates:
http://download.sony.com/prs/prs-500...0.02.01300.exe
http://download.sony.com/prs/prs-500...0.03.07170.exe
Sony eBook Library / Connect PC Software:
http://download.sony.com/prs/connect...0Installer.exe
http://download.sony.com/prs/ebookli...0Installer.exe <-- current official version
(official link:
http://ebookstore.sony.com/downloadclient.html)
http://download.sony.com/prs/ebookli...0Installer.exe <-- current version for Readers from Borders
(official link:
http://ebookstore.sony.com/borders)
The last download link is the rebranded Sony eBook Library for Borders customers. I suppose if you use it, Sony will think that you bought your Reader from Borders, and Borders, I am guessing here, will earn a percentage for each book you buy via the Library.