CCGI Error

[#1]

I was updating my wordpress site and automatically installed wordpress 2.8 which went fine until I tried to open my site again and got the followingerror message. Does anyone know how to fix it? I am not as techy as I had hoped!
CCGI Error: Execution of this script not permitted
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Execution of (index.php) is not permitted for the following reason:

Script is not executable. Issue 'chmod 755 filename'
Request Data:
User Agent/Browser: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)
Request Method: GET
Remote Address: 212.56.88.17
Remote Port: 50485
Referring Page: http://uk.ask.com/web?q=vip+broadcasting&qsrc=999&siteid=10000481&l=dis&qenc=1

[#2]

Get WinSCP if you don't already have it. Connect, select file in set property to 0755. You may have to do this for all the new files you have installed. Can be done by folder recursively.

[#3]

Or use the fixphpperms.sh script (do a search in the help)