I dont have it myself.
But I guess there must be a folder on your computer such as c:/cleanersmate/data where all the info is kept.
Copy that to a cd or external drive, put it in the new computer, copy and paste that folder to the same location on the new pc as it is on the old pc.
That might do it? I could be typing BS, but have a look.
Thinking of getting Cleaners Mate myself.