problem publishing phpwcms

[hughfraser]

problem publishing phpwcms from fantastico, Iam getting a page 500 error exact copy from my website:
Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.


Please contact the server administrator, webmaster@hughssoftware.elementfx.com
and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

It say to access my server logs, how do I do this, sorry I'm not very good at this type of stuff.

type: x10 free
hosting user: hugh72
error: page 500 system internal error
tried: nothing, don't know how to fix it LOL

Thanks guys and gals

Edit:
OK I've traced down my log files. Can someone tell me what I've to do?
[Tue Oct 2 14:44:26 2007] [alert] [client 217.42.118.206] /home/hugh72/public_html/content/.htaccess: Invalid command 'php_flag', perhaps mis-spelled or defined by a module not included in the server configuration

[dpogary]

i got the exact same error when i was trying to get it to work...does anyone know how to fix this problem?