I think Easy Peasy is an Ubuntu-based distribution optimised for the ASUS Eee PC and other netbooks. So I expect the standard Ubuntu commands will work.
The Grub's configuration file is in /boot/grub/menu.lst which one can edit by the terminal command
Code:
sudo gedit /boot/grub/menu.lst
To get a M$ system boot again is a child play but you need to know where it is residing. You can ask Linux in terminal command to tell you the partition layout by
The partition with Partition Type ID 7 has a NTFS filing system so it will be the Windows Vista. If this partition is number 1 it will be known to Grub as partition 0 as Grub counts from zero. Assuming there is only one disk then the Vista partition will known to Grub as (hd0,0). These entries in the menu.lst will fire it up
Code:
title Vista in 1st partion of 1st disk or sda1 known to Grub as (hd0,0)
root (hd0,0)
chainloader +1