How to un-install ubuntu from a vista-ubuntu dual booting machine and then upgrade vista to windows 7 and then install vmware to use latest ubuntu with windows 7 simultaneously

I am going to this as a DIY project in the next couple of days as my 2 year old hp dv2700 requires a face lift. I am dualbooting with ubuntu (gutsy gibbon) and vista. But want a virtual box with windows 7 and karmic koala. Steps to follow:

1. un-install ubuntu from vista-ubuntu m/c (use EasyBCD to deleted GRUB and re-write MBR and then delete linux partition using "storage manager" of vista and include that "free space" in vista)

Read this link: http://quainttech.blogspot.com/2007/05/how-to-remove-ubuntu-from-vista-dual.html : The most important post is given below (@Sanjeev):

"Thanks for this.
I was however on the road and needed the extra HDD space on my laptop and since I wasn't using the dual boot Ubuntu anyway I decided to get rid of it. Now comes the hard part - No Vista install media!!!
I found a way to do it extremely simply because I needed to change the Vista bootloader also (I was triple booting XP/Vista/Ubuntu...)So here are the steps -

Download and install EasyBCD (google for it you'll find it easy and it's free...)
Fire up EasyBCD (you may have to choose Allow if you have UAC on) and choose 'Manage Bootloader' in the toolbox on the left
In the first option choose the radio button which says 'Reinstall Vista Bootloader' and hit the Write MBR button
Reboot and you have your Vista bootloader back!! Delete the Ubuntu Partition using Storage Manager and you are now good to go..."

2. upgrade to windows 7 with upgrade DVD (delete old windows files to increase space)
3. install vmware work station 7.0 (this wiki/how-to link is from pitt so may not be public http://collab.sam.pitt.edu/node/469)
4. install the latest ubuntu (get the iso image from ubuntu site) using vmware in windows 7 (again this wiki link may not be public  http://collab.sam.pitt.edu/node/465)

For points 3 and 4 above you may go to http://www.vmware.com/support/pubs/ws_pubs.html but first get a vmware copy. An academic license is free, I guess.

That's it!!