Hi,
I would agree with all the above.
Walking at 7 weeks? Are you sure?
Perhaps if you are keen to keep the walking up, a safer way would be to have your baby in the bath tub at least waist high to unload the bones.
I would like to see research into whether kids who don't crawl develop certain types of postures etc etc.
Interesting stuff.
In the end, is there an advantage for your child to "walk" earlier - as a parent of 3, i loved the fact that my kids couldn't get away quickly until the average 1 yr old!