Problem Restoring a differential partition backup

Hi,

I have a Full Basic Partition "BasicXP" and from this I have created
first a differential partion back up called "diff01" and later a second one called "diff02" always having as basic backup the "BasicXP" one.

diff01 ---- BasicXP
diff02 ---- BasicXP

Before creating the diff02 backup, diff01 was working fine. After creating diff02, both diff01 and diff02 are not working. BasicXP fortunately works.

For not working I mean I cannot restore those files from the recovery CD and under windows.

The diff02 archive verification is OK, BasicXP works fine and also the image is mounted correctly.
Can you help me restore diff02 back up?

Thanks