Silly Question Needs Answering

Hi there, how can i change my focus points in my viewfinder so that the centre red light is always in focus, i havent read all of the manual as yet, ive done some quick looking through it but still cant find it,

I thought it might be to hold the shutter button half down and use the arrow cursors on the back to change this but nothing,

Any help please, sorry if this is lame but i truly dont know

What camera?

sorry, ive just realised i didnt put the camera into the thread, its been a long day, lol, its a 450 XSI

Make sure you're camera settings are displayed on the LCD. Press the "-" zoom key. This is the same key as the AF selection point. Use the cross buttons to select your point(s). If you want to select the center af point quickly, press the "set" button. Once you've selected the AF point you want, press the "-" zoom key to select it.

Thanks for the rapid responses

Also while using the viewfinder, press the "-" zoom button and rotate the dial near the shutter release to select your focus point, then half-press the shutter to lock it in.

Excellent, thanks everyone, ive just tried it and noted it.