Bugzilla code help require

[Khokhar cth]

Hi, I need your assistance about bugzilla. I have some productsProductA ProductB
and groups in bugzilla.Client Developer
Only Developer should able the create/edit the fields but Client should not able to edit the bug.The following discussion was very helpful for me.http://groups.google.com/group/netscape.public.mozilla.webtools/browse_thread/thread/98efcae88fe84d6d/51c8deb672402e09?lnk=gst&q=permissions+for+all+users#51c8deb672402e09
Answer:Product A:ReadCreateA: Entry/Mandatory/Mandatory/-- EditA: --/NA/NA/Canedit Similar for Product B.For this, you need to give editbugs privileges to developers. If you want to restrict editbugs privileges in other products, you need to set up a group they are not a member of as xx/xx/xx/Canedit for the other products. In your particular setup, this is already covered by the EditA and EditB groups.(Works fine ) When I use the above guide , it works perfectly except posting comments. I am getting following error while posting comment --> "You are not permitted to edit bugs in product Product A" but I want users of "Group UsersA" should not edit the bug (that is fine) but must be able to post the comment.
What to do ?
I am thinking to change the code of bugzilla, I am using 3.6.3. But i don't know after submit the bug where this form will post and where i'll catch the request ? is it Bug.pl  file?
bug page url is http://localhost/show_bug.cgi?id=8 and after submitting it becomes http://localhost/process_bug.cgi with following Error msg "You are not permitted to edit bugs in product Product A". 
I am thinking to to catch the <form> request and write the if condition for following text area. 
<textarea name="comment" id="comment"
rows="10"          cols="80"            onFocus="this.rows=25"></textarea>
is it possible ?









 		 	   		  
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