Solved! Go to Solution.
settings-->extras+info will show you whether you have the Amber update or not ..
For your other query .. select 'Desktop' at the bottom of the display for your posts..but the PMs can be seen in the Mobile Version by tapping the Icon shown in the second Attachment ..
For updating go to settings-->phone update-->check for updates..
..you may also check the availability status HERE for your Phone's Variant ..