I am having trouble finding brushes that will work for elements witch is sadly the only version i have..... the only brushes I have that do work came in a zip file and they sucked.
The trial for CS2 only lasts for 30 days, after which you have to register the product, ie. buy it. It's pretty expensive, so I'd sugget if it's beyond your budget go for Corel Paint Shop Pro X. It's not quite up to CS2 standard but it's workable.
I use elements as well - go to deviantart.com and try your luck. A lot of the brushes that are listed as PS7 are actually compatible with both.