anuk07 :
u know it is feeling bad 65 views no answers, is my question is illegal?
lol................
Nah, just boring.
There are at least three ways to do this. I will present from simplest to, in my opinion, best. In any case, there are no issues with "master" and "slave" settings between the disks, just in case you were going to ask that.
■Attach the SATA drive to the system, boot from the Win7 DVD, and install Win7 to the SATA drive. Let the install procedure do the partitioning. When you boot, you will see a boot menu that will let you choose (interesting typo, I typed "cheese") between the two OSes.
Why I do not like this: The Master Boot Record and Boot Loader, the first steps of the boot after BIOS, will continue to reside on the older drive. You will not be able to boot directly from the SATA drive if the IDE drive dies or you decide to abandon XP.
■Attach the SATA drive to the system and detach the IDE drive. Boot from the Win7 DVD, and install Win7 to the SATA drive. Re-attach the IDE drive. You will have to choose which OS to boot in the BIOS, by setting which drive should be first in the boot sequence. You can usually select another during boot by pressing the appropriate key, usually F8, to pop up a boot menu at the end of BIOS.
Why I don't like this: The BIOS is not the most convenient place to choose a boot. Changing hardware frequently causes the boot order to change. Why I do like this: Either drive can be booted directly without the other.
■Proceed as above and then use EasyBCD to modify your Win7 boot. Follow the directions with EasyBCD to create a boot menu entry that points to your XP drive.
Why I like this: A nice boot menu that defaults to what I do 95% of the time. Why I don't like this: It leaves the IDE drive bootable, and sometimes having two bootable drives creates confusion.
Edit: Be patient on the forums. Sometimes the people who know your topic best are on vacation, or simply resting, and you may not get an answer for days. It's a slower medium than Instant Messenger or Twitter or whatever.