Reinstalling Windows 7 (dual boot) after Ubuntu install

Hi,

I've just installed Ubuntu 9.10 on my brand new Dell Inspiron 1440 and everything is working great... The only problem I met during the installation was with the impossibility to resize the Win 7 partition within the Ubuntu installer (I now know that I should have done that within Win 7...), so I deleted the Win 7 partition completely, keeping the 15Gb recovery partition intact.

I'm a long time steady Ubuntu user, so I rarely have the need to boot into Windows, but I do like to have it available, just in case...  Now here's my questions:

• I've tried to boot into the recovery partition (using Grub) and see what kind of Windows 7 reinstallation/recovery options is offered.  I've tried with the various options, and I always get an error message, i.e. the process can't be performed.  I've also tried the F8  at boot time, based on what Dell is recommending, but it's not working (I suspect that's because Grub is installed on the MBR).  Someone has a clue on what I should do to proceed to a Win 7 reinstallation/recovery?

• If I ever find the way to proceed to a Win 7 reinstallation/recovery, is there any chance that I could do it without deleting my current Ubuntu partition?  I've read that it's possible with a Win 7 installation DVD, but I wonder if it could work with an installation based on the Dell recovery partition...

Thanks in advance for any help.