To be fair Cholo is right- the stock images on
The Leading Source Of Free Stock Photos - stock.xchng ARE free.
They're just not very good for the kind of leaflets the OP wants.
It's a site owned by istock that is used, mainly, by amateur photographers hoping to get an "in" into the stock images market.
However, the you'll find that anything really specific (such as specific beauty images etc.) aren't on there, the good ones have been snaffled away by iStock themselves and are offered for sale on the same page as the free ones.
There are a few decent "generic" mood photos (like landscapes and flowers etc.) that are available for a license you can use (but read the small print on every single photo, some appear "free"- but you have to acknowledge the photographer on many of the good ones).
But if you're looking for stunning pictures of models, or hair and beauty images, you'll be disappointed. However, if you think laterally, or are after a "mood" image there are some good ones on there.
Very rarely anything good for free on the internet anymore these days!
With regards to resizing- 1024 x 768 is for the web, if you using them for a leaflet (like the OP suggests) then you don't want to do that, it'll probably make then unusable for print.
Most of the photos download as 300dpi- which is what you need for print, you can then resize to 72dpi if you want it for the web.
My OWN biggest advice if you're looking for free photos/images is to hassle your suppliers first! the majority of images/photos I've used recently have been supplied by suppliers (I've found that Sweet Squared are brilliant for this, I'm consistently impressed by them for it). The reason I ask people to do that is because if you purchase photos, it'd probably cost more than I'd charge to design a leaflet in the first place!