Yah , It may be like that, but as fratermus has pointed out, I was also facing the problem of corrupted backup of my TCL backup partition abt which I had posted sometime back in XP rebooting problem.
( I am still using v2.4 due to my specific needs - am hapy with it , though I have tried v2.6 also)
So I kept a separate copy of my succesful setup backup in another
location and I just replace the corrupted TCL backup file with this good backup, whenever needed. I solved my problem on my end like this.
I am eagerly waiting for a nice, stable, feature rich verion of TCL -may be V3 or v4.
~ Pats