Help with Ebay Developer API code

Here is the code I am using to call a seach from ebay and display products. It is borrowed from 45n5.com

1) Anyhoo, I am not sure what search it is actually calling. I can tell it isn't latest items , maybe most popular, random I am not sure.

2) Some of the pictures do not show. I see it is calling gallery pic, how can I make it call whatever picture is there?

<?php

  ///do ebay stuff

///ebay variables 

//

//

//

$RequestToken = '7i80MZdNpSU%3D**ttEOMfJUQZnfmhhGr7EGYOx6uRU%3D';  // ebay REST token, needed with REST calls

$RequestUserId = 'xxxxx;  // eBay User ID, needed with REST calls

$pid="xxxxxx"; //your ebay pid

$aid="xxxxx"; //your ebay aid 



$SiteId = '0';  // Site used. Site ID 0 = US

$Version = '497'; // API version











$date=date(U); // format date for calculation in seconds

$hourdiff = "15"; //change the server time plus one hour

$timeadjust = ($hourdiff * 60 * 60); //this is how to calc it

$adjtimeleft = date("Y-m-d", $date + $timeadjust); //format display

$adjtimeright = date("H:m:s", $date + $timeadjust); //format display



$endtimefrom = "&EndTimeFrom=" . $adjtimeleft . "T" . $adjtimeright . ".000Z";//2007-08-04T18:20:27.000Z";









// Construct the GetSearchResults REST call 

$apicall = "http://rest.api.ebay.com/restapi?CallName=GetSearchResults&RequestToken=" . $RequestToken . "&RequestUserId=" . $RequestUserId . "&SiteId=$SiteId&Version=$Version&Query=$SafeQuery&EntriesPerPage=$EntriesPerPage&PageNumber=$PageNumber&UnifiedInput=1$endtimefrom";



// Load the call and capture the XML document returned by eBay API as an object



		//Initialize the Curl session

$ch = curl_init();



//Set curl to return the data instead of printing it to the browser.

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

//Set the URL

curl_setopt($ch, CURLOPT_URL, $apicall);

//Execute the fetch

$data = curl_exec($ch);

//Close the connection

curl_close($ch);	

		

		

    $xml = new SimpleXMLElement($data);



// Check to see if the XML response was loaded, else print an error







if ($xml->SearchResultItemArray->SearchResultItem) {

$contentcenter.="<h1>Auctions for " .   $title  . "</h1>";



	$results = '';



	// If the XML response was loaded, parse it and build links 

	foreach ($xml->SearchResultItemArray->SearchResultItem as $searchitem) {

		$link  = $searchitem->Item->ListingDetails->ViewItemURL . "&pid=$pid&aid=$aid";

		$title = $searchitem->Item->Title;

        $pic=$searchitem->Item->PictureDetails->GalleryURL;

		// For each SearchResultItem node, build a link and append it to $results

		$results .="<div style=\"margin-bottom:20px;border:1px solid #f1f1f1;\">";



		if (empty($pic)) {

		$results .="\n<img src=\"pic.jpg\" alt=\"\" style=\"float:left;\" />";

		}else{

		$results .="\n<img src=\"$pic\" alt=\"\" style=\"float:left;\" />";

		}

		

		$results .= "<a href=\"$link\">$title</a><div style=\"clear:both\"></div>";

		// For each SearchResultItem node, build a link and append it to $results

		$results .= "<div style=\"clear:both\"></div></div>";



	}

}

// If there was no XML response, print an error

else {

	//$results = "Dang! Must not have got the XML response!";

}

$contentcenter.=$results;







?>



<?php echo $contentcenter; ?>

Code (markup):