1. The gear is "soft" as it needs to be to absorb loads on rough fields and high-rate landings, so it will be 'rolly'.
2. It may be accentuated in the sim - I remember when the upgraded FS9 POSKY 747 came out with enhanced suspension and it could be a bear, even to the point of being overly sensitive when loading in with a severe crosswind.
3. Make sure you use proper crosswind technique when taxiing - apply (varying) aileron into the wind as airflow under the upwind wing will cause it to lift. If you want realism then it needs to be handled realistically.
Mostly a fun video of extreme flying in airshow conditions but watch the body roll on landing at about 6:10-6:30 in split-screen and if you watch closely you'll even see it in the take-off run