Are you using the agentadmin.php page to administer all of the listings? The original idea of agentadmin.php is a single agent could edit their own listings. To edit all of the listings for all users I would imagine that would be done through the /admin/ section of the site. Currently, there is only the ability to narrow that down by agent.

I have spent a fair amount of time removing the sessions() information from pages that did not seem to need it, such as browse.php and propview.php. I suppose that it might be possible to check for an admin's or agent's login credentials; if the variables are set, then a link to edit could be placed on the page. I will have to look into this to see how much work it appears to be.

Just an idea of a workaround of this issue. What if we add a field to a database table where all the property features listed. We make this field hidden, so that only agents will be able to see it. And in this field a unique identifier will be entered by an agent when adding a property (an identifier will look something like H08053, APR70573, etc.).  Then we add interface for searching by this field in the agent's area (i.e. /agentadmin.php). It can be a separate window with only this field and search button or integrated somewhere on agentadmin.php page.  If a property is found, then it is shown with correspondent links for modifying or editing this property.
This workaround seems to help an agent to find property he wants to modify or delete in the great amount of properties. What do you think about it?  Does it seem hard to realize?

Yes, you are right. At first we wanted to give an agent the ability to search by multiple parameters. It's described in the first post.
Then we thought of a workaround (if it's hard to implements such search) that consists of a separate field. Yes, it can be listing ID (what is MLS is rather hazy for me . But two things are important here. 1) the identifier is entered manually, not generated somehow automatically. 2) after having found the property, an agent shall be given interface to modify/delete that property.

Thank you!

That's really great! The search works alright. I think it's just what we needed. Thanks again!

Two things though.
1) in agent area I see the line like

query: SELECT * from homes where owner = '4' ,

Why is that?
2) Jump to another page - that we discussed at http://bb.rwcinc.net/viewtopic.php?id=150 - again stopped working
I did everything as it's said. Changed agentadmin.php about lines 60-65 so that it looks like this

if (isset ($_GET))
{ 
 $edit = @ unquote($_GET['edit']); 
 $editimage = @ unquote($_GET['editimage']);
 $cur_page = @unquote($_GET['cur_page']);
}

But this time it didn't work.