Windows disappears from Grab Ubuntu

[aldo albanese]

Hi,
I installed Ubuntu 10.10 on a previous Windows XP installation.  Grub was 
showing both Ubuntu and Windows on the startup list but after I applied the 
Ubuntu updates, it disappeared from the list.  I ran sudo update-grub2 but it 
did not fix the problem. Do you know how to get it back on the list?

I'm also trying to install primedesktop.freehostia.com network utility but I'm 
not getting any success.  I'm not sure how to properly install and run it, any 
suggestions?  P.S. I also tried to run it from Windows, it installs properly but 
I do not see any icons installed to run.

Thank you for your help,
Aldo