How to resize ext3 partition - GPartEd

Hi, couple of days ago was asked to increase ext3 partition without LVM.
After searching the web I found a cool Linux Live CD called GPatrEd.

because it has just one partition  " /dav/sda1 on / "  i could not unmount it the resize it with the new space.
I was had to used a live CD.
I'm talking about virtual machine, so first I increased the disk space of the virtual machine
then I restart and boot from GPartEd live CD.
The UI is very simple and fun actually, 
all you need to do is to resize the partition with the mouse the click APPLY.

After finishing, I restart the machine again and WALLA I had new partition space on my server.