Windows 8 Improvements for the touch keyboard ?

Hi !

First thread on this forum and new user of Windows 8 for the last 5 days. I installed Win 8 RP on my Acer Iconia tab W500 and I have a little annoying problem with the touch pad. When I go in Internet Explorer (regular version desktop, not in Metro) and I "click" on the seach field of Google home page (it could be any other page like facebook), the keyboard doesn't appear (on Android or iOS, it's automatic). I have to click on the little keyboard icon on the bottom toolbar (that I had previously add to have access to it).

Also, grey and black for keys, a little bit boring don't you think? Is it possible to change the color/style/opacity ? If someone have a trick, let me know please !