谁能来翻译一下破解版的安装说明！有一句不是很明白，标题~~~~~~~~！！！

skyline2000

安装信息：

1. Extract RARs
2. Mount or Burn images
3. Install the game (when it ask for sid file you have to select it on
    your dvd drive)
3. Install steam and create an account
4. Copy crack content from Razor1911 dir at dvd2 to your install folder
5. First log into steam and then run the iw4sp.exe! Othwerwise it wont work!

第二句和第五句分别是什么意思？

还有说到要装STEAM和创建帐号，那需要登陆STEAM吗?