what version of windows am i running on this cell phone
No, Windows Phone 8 is only available on Windows Phone devices sold with Windows Phone 8 already installed. Devices running on 7.5 or lower of the Windows Phone OS aren't capable of running newer OS versions. To find devices that are currently running Windows Phone 8 or higher, visit the Windows Phone page in Shop.
A technical preview of the OS is already available, with the final version expected to reach handsets later this year. Some handsets, but not all, running Windows Phone 8.1 will be upgraded to Windows 10. At the show Microsoft announced a new smartphone, the Lumia 640XL, which it demonstrated running Windows 10 Technical Preview at its booth. It will ship with Windows Phone 8.1, but can be upgraded to Windows Phone 10.