php.ini blog crash problem godaddy

I am a complete newbee at wordpress so if you have already answered this question please point me to the post

• I have a windows shared hosting on godaddy with php5 on iis7
• I have created a widget which uses simplexml_load_file to get a URL based resource from an external site http://www.ndtv.com/convergence/ndtv/rssnat.asp
• Widget installed perfectly on my page where the widget was placed got this error URL file-access is disabled in the server configuration
• Learnt that I have to upload my own php.ini to take care of allow_url_fopen
• Uploaded a new php.ini from my computer renamed it to php5.inichanged the extension directory to point to c:\php5\ext that is the godaddy directory
• created a page to test my function not a wordpress page or widget just simple php page
  http://best-news-site.com/simple.php
  Works fine
• Original blog which was working crashed http://best-news-site.com/

Obviously error lies with my php5.ini, is there a way to solve this problem?
thanks in advance