RickyB, one of the things that scares alot of tractor folks is tipping or the feeling that a tractor is going to tip. Traveling sideways on a slope increases this uneasyness quickly. Getting accustom to it will take time. You will have occasions where it will be necessary I'm sure to put yourself into that situation. Obviously you will not try something very steep as your fear will prevent this. But just remember this when feeling uneasy on the tractor, whether sideways or going up or down slopes.
Go slow and when sideways avoid turning the wheel uphill.
Carry the loader as low as possible but not so low as to have the bucket dig in when hitting bumps, objects. Carrying it low, especially while loaded does two things, A: lowers the center of gravity
B: allows you to drop the bucket to the ground quickly for stability when things start getting uneasy.
Another thing you should do, when using the loader in particular, is have an implement on the back. A heavy boxscraper is ideal. The boxscraper can be a real lifesaver since its footprint and weight can quickly arrest the tractors movement. Here again you can carry it low on a slope for the same reasons as the loader. I'm sure some folks will advise you to stay off the slopes and be safe etc., but unless you and your neighbors have totally flat land, you will eventually deal with it. Heck you will deal with it when digging holes or removing stumps. Just have that right hand on the loader joy stick ready to drop the bucket, practice it and I think you will find slopes a little easier to deal with. Rat...