Photoshop to flash image blurred

hey hows it going , i created a image in Photoshop cs8 and when I saved it in save as web folder I saved it as graphic png 24 , the reason I did this was when I save it on gif or any other the image looks blurry around the outside// now when I go to flash 2004 mx and I put the image on the stage and ( when I save the img as png24) it looks just like I want it to but when I view on web it looks like someone spilled water on it but when I go back to the stage it looks fine . it doesn’t do that when I save the img as gif ? any help would be great