does any one know about a haro bike?

If it's bent really bad you need a new one. On a bike like yours I'd just get a new wheel. Many times it's cheaper to buy the wheel than purchase a rim and have it laced. If you aren't sure that it needs to be replaced, take just the wheel to a bike shop. They can tell you if it can be trued and about how well it will turn out if it can be done at all.

http://www.danscomp.com/403006.php?cat=PARTS

You know you like em and they're only $100 a set!!! If you're not interested or if your bike isn't set up for those size axles or freewheels or w/e, here's the whole list on the site of built wheels...

http://www.danscomp.com/products.php?by=BASEPRICE&order=ASC&cat=PARTS&show=WheelsStock