well your wording is a little confusing but by the sound of things your mouse arrow isnt working properly?
it should just work by moving the analogue stick, moving from link to link is the arrow keys, scrolling is hold square and up and down etc. the internet is realy easy to use.
but if your talking about your arrow moving wierdly by itself then your analogue stick must have problems in which case im pretty sure you can buy a new stick and send it to get wired up and fixed.