On the XP machine try opening the Options menu in Clones and ensure your real profile is selected, then change one setting and click OK to save and close. This should flag your profile as "needs to be synced" so that when you exit Clones Steam will upload to the cloud. When you start it on the W7 machine the profile should come across. You can also try manually copying the profile data from the XP to the W7 computer, and then try making options changes and see if it is reflected on the other machine.
I'll do some testing between my computers, maybe our cloud is having a thunderstorm and short-circuited
![Shocked :shock:](https://forums.clonesgame.com/images/smilies/burnt_tk100.png)