In Ubuntu 11.04, click on 'Places' on the top menu bar and you should
get a drop down list that has the Windows drive partitions listed.
Click on these to mount and the contents will be visible.

Find the partition that contains the folders 'Programs', 'Windows',
'Users' and double click on 'Users' to open it. In there you'll see
several folders, one of which will be the login name of the Windows 7
user ( or users if more than one login ). Again, double click on the
user you want to extract the data from and it will all be there ready
to copy onto an external drive pending whatever you are planning on
doing to fix Windows. Presumably you've tried repairing and now are
looking at a factory restore ?