Pay (Am I getting screwed)

Hey guys, I got a question about pay for PHP work... I'm employed by a small business setting up unix servers and scripting a webhosting system for them. I'm only 17 years old, but I've finished year 11 and I have my MCSE (Not that it means a lot) I'm getting paid $150 Australian per week, working from 9-5 on Mondays, Tuesdays and Thursdays. Personally I think this is a 'screwover' situation. I've tried talking to my boss about it but he's the 'I know everything' and 'you're only 17' type... What do you guys think of this? What's a reasonable pay for this amount of PHP coding, for a 17 year old? Do bear in mind that I'm scripting an entire webhosting businesses site. Thanks!!! Liam