Most wall mount are on a "slide" type system meaning you can center the TV on the rails on the back of the TV to a certain extent......wall mounts aren't cheap so plan on spending 150-200 for one that is going to protect that TV, and you could always...
The size of the mount has to match the TV. A 32" should be a medium mount?. The most important part is to make sure you attach mount to a strong stud in the wall.
To ensure the safety of the TV youre going to want to 2 people. Most mounts are pretty self explanitory, because yours is a tilt wall mount Im going to assume that its attatched to the TV in which case yorue going to want one person holding the tv wh...