A stackexchange style forum would be appropriate for this site (although there are many many other support forums out there). For a list of clones see this meta.stackexchange.com answer. The stackexchange model is designed around users helping users, but if your staff can take part then that's even better. If I were you I'd tweak the code so that users that are staff are clearly identified as such.

What platform can I use to establish a users support forum?
I am fetching data from RSS feed with Magpie.
$rss[description]  contains CDATA with html elements:  

&lt;![CDATA[  
&lt;div&gt;  
 &lt;a href='url'&gt;  
  &lt;img src='img_url' alt='aaa' title='bbb' border='0' width='116' height='116'&gt;  
 &lt;/a&gt;  
&lt;/div&gt;]]&gt;  
Some other text  


How can I fetch "img_url" from this?  Is preg_match() the only way? Maybe I can use simpleXML?
