English Need Help

HELP me please again!!! Another installation problem!

I almost finished with the installation, but now I have the following at the very top of the page:

Warning: getimagesize() [function.getimagesize]: PNG file corrupted by ASCII conversion in /www/blog/www/htdocs/yacs/skins/skin_skeleton.php on line 2166

Warning: getimagesize() [function.getimagesize]: PNG file corrupted by ASCII conversion in /www/blog/www/htdocs/yacs/skins/skin_skeleton.php on line 2671

Warning: getimagesize() [function.getimagesize]: PNG file corrupted by ASCII conversion in /www/blog/www/htdocs/yacs/skins/skin_skeleton.php on line 2681

Warning: getimagesize() [function.getimagesize]: PNG file corrupted by ASCII conversion in /www/blog/www/htdocs/yacs/skins/skin_skeleton.php on line 2691