Changed file in includes/templates/images and site not working

Hi,
I hope i chose the right thread to post my problem. I am a newbie at Zen Cart, uploaded a few months ago a template,and site was working fine. But when i tried to change the background yesterday i changed the file accidentaly in the includes/templates/images folder and now the background,header, logo and some other images are not showing up..What can i do to fix this? Hope somebody can help me, because i am stuck...:(

It's always a good idea to include a link to the site so we can see the behavior for ourselves.

Sorry.. the link is http://outletcosmetice.com .I think i should re-upload something from the original Zen Cart files but i don't know what.. Thank you very muck for your time.

And you didn't change anything other than in the images folder ? Zencart is looking for most of your images in the template_default/images folder and a few in the ashley_pink/images folder. Are the image files all there in those folders ?

I didn't change anything else...but when i looked at the ashley_pink/images folder i saw that the images were there,but when i tried to open them, the .gif ones did not show up in the browser. I re-uploaded the files, and now they are showing individually opened in browser,but in the website still do not show up...

Later edit..when i try to open each button individually from the ashley_pink/images folder they show up like small x in the browser.

Solved the problem..reinstalled all the files and now images are showing up. Thank you Stevesh for your help!