There is no other way to CORRECTLY and SAFELY land cross-wind without rudder. A good rule of thumb for landing is altitude is controlled with throttle, speed is controlled with elevator and direction or heading is controlled with rudder. But because crosswind causes your aircraft to roll, both ailerons AND rudder are necessary. You can always crab it in like a couple of guys have mentioned but it looks sloppy and you generally, unless you're very proficient, land on something other than the runway. Rudder allows the plane to remain relatively stable on approach so practice about two or three mistakes high and gauge how much rudder you will need for the actual approach. You will be surprised how much it helps to try this and then attempt the landing. You wont feel "lost" because you can feel what the plane does relative to the runway. Also the higher you are the more wind resistance there is so generally speaking there is less wind closer to the runway than above it. Meaning it wont be as turbulent so the practice above before landing gives you an edge. Hope this helps