Can someone please tell me what the versions available are... I see a download for QT 7 on the Apple site.
QT v7.7 is the latest player/structure update for Leopard and Windows operating systems. QT v7.6.6 and QT v10.0 are the latest player updates for the dual QT v7.6.6/QT v10.0 structure compatible with Snow Leopard. QT 7.6.6 and QT 10.1 are the latest player updates for the dual QT v7.7.1/QT v10.1 structure which is compatible with the Lion operating system.
Mine is a 2011 MacBookPro and all it says is version 10? Where does it say what it is, I've heard of X but no idea what version 10 is?
QT X and QT 10 are the same thing. (i.e., X is the Roman numeral representing 10 just OS X is also sometimes referred to as OS 10.)
It's never upgraded it so what is current?
Yes, along as you do not add the QT 7 Player app from the Snow Leopard OS disc.
Is there no way on there to be able to change the contrast or brightness because it really needs tweeking?
For the QT X Player app, adjust the display screen controls. For the QT 7 app (if you choose to install it), use the A/V control panel to adjust brightness, color, contrast, and/or tint.