thakurlokesh

I have windows xp service pack 2 cd. After removing some components using nlite, following massages appear during installation: srgb.icm;streamci.dll;tosdvd.sys;tsbvcap.sys;tsbyuv.dll;usbcamd.sys;usbcamd2.sys;wstrendr.ax; wuam.chm are missing. How to solve this problem???

Curruntly windows xp is installed in my system. When I try to install windows vista using DVD, it does not ask me to format drive C i.e. windows xp, it installs with windows xp, but I don't want two operating system in my pc, I want just windows vista. How can I remove windows xp and install windows vista???