If you mean "Visual Styles" by saying "Themes", the extensions of windows 7 and windows 8 visual styles are different. That makes it almost impossible to install windows 7 visual styles on windows 8. There may be other alternatives for it.
Because windows 8 themes are basically still windows 7 themes, they just have windows 8 graphics as the background colour. Thier coding is still the same.
Yes, most of them will work.
Get a USB Flash Drive and get files from Windows 7 and transfer to Windows 8.
There is no Windows 8.
No windows will work on PS3. The Windows 7 is an operating system developed by Microsoft and the PS3 does not run Windows in any form of the operating system from Windows 95 to Windows 8
Microsoft Windows 8 will suceed windows 7.
Windows Calender is included with Windows Vista. It is not included with Windows 7 or 8, but can be copied over to Windows 7 and 8 from Windows Vista.
No. Windows themes only work on specific versions of Windows.
Windows 7.
Yes, League of Legends runs on Windows XP, Windows Vista, Windows 7, and Windows 8.
Internet Explorer 8 is included by default in Windows 7.
In general, yes; most software that runs under windows 7 will run under windows 8.