Adobe Photoshop CS6 is available to all software users as a free download for Windows. This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system/platform with certain restrictions based on its EULA. The same interface and design in Adobe Photoshop CS6 Extended is used as it was in the earlier iteration of the Adobe services with CS5. If you've used pretty much any version of Adobe Photoshop before, you won't have any trouble getting around in this CS6 version, especially if you've used CS4/CS5 before.
Note: Adobe Photoshop CS6 13.0.1.1 Extended trial is currently only available with Adobe's download assistant (an installer and download manager).