change phone properties so I can download an item from Google play? I have a Huawei u8160(A.K.A Vodafone 858 Smart) which had an original Froyo ROM , Now it's upgraded to CyanogenMod7.2(Gingerbread) and even after upgrading Google play apps are the same exactly.

I was wondering if I can change the properties of my phone so that Google play would understand that I'm running Gingerbread?
The apps will not just change when your version changes. All Apps have a minimum API Version which is required to use the App. So if your apps all have a minimum API version of e.g. Froyo and there is no special version for gingerbread all will stay the same.

The Properties of the android version cannot be changed, only if you compile your own system and write a different version number in there. But this will not solve the problem of the API Versions: If you Fake an Android 4.0.3 with 2.3.6 Real System Version, some Apps will probably not run because they need to have API Version 15 and not 8.