Canon 100-400 IS usm Lens/ 50D camera

Gday all,
A few questions, firstly on the 100-400 IS lens, which is the ON position for the stabilizer is it the" I" or the "O"?
second question, for the stabilizer to work in a pan shoot, left to right or right to left is it switch position 1 or 2?.
Onto the camera questions, is the 50D camera any good? I want to replace my 30D which im having a few problems
with,being ,the photos are not razor sharp regarless of the lens im using. Its taken probable 50000 shots. So is the 50D any good? or has anyone heard of the 60D? or know of its release date?
A few questions, firstly on the 100-400 IS lens, which is the ON position for the stabilizer is it the" I" or the "O"?
second question, for the stabilizer to work in a pan shoot, left to right or right to left is it switch position 1 or 2?.
Onto the camera questions, is the 50D camera any good? I want to replace my 30D which im having a few problems
with,being ,the photos are not razor sharp regarless of the lens im using. Its taken probable 50000 shots. So is the 50D any good? or has anyone heard of the 60D? or know of its release date?