Windows 7 - Themes help me

i found a mac theme that was cool,but i didn't know how to install it.Can someone give me a step by step instructions?and the risk or requirements to change your theme

Hello Kagura

To install a custom theme you need to patch some files on your system. I use this application, run it as an administrator, it will tell you the files you nee to patch an reboot - Universal Theme Patcher for Windows 7 - Universal theme patcher - Windows 7 Download
Then download the theme you want to install and usually they will come with a read me file which will explain the files that need to be added/changed or may even come with an installer.
If you post a link to the theme you want to install we can have a look at exactly what you need to do as each theme maker does things a little different.

Danny

Some further reading for you - Enabling Custom Themes - Windows 7

Snow Leopard On 7 by =sagorpirbd on deviantART

or Mac OS X Lion Theme for Windows 7 - Mac Lion Skin, Mac OS X lion, Mac OS X Lion Skin, Mac OS X Lion Transformation Pack, Mac Skin, windows 7 theme, Windows 7 Transformation Pack - Technically Personal!