Modifying Custom Magic Plugin to use Custom Field Data

This post is regarding: GLM’s Category Magic Plugin
http://www.ax697.org/category-magic-on-wordpress-200765.html

I’m trying to edit GLM’s Category Magic Plugin, so that I can modify the output to including data that is in my custom fields, more specifically a different title and a thumbnail image.

Below is the relevant code from the beginning, to the end of the segment I’m modifying. How do I modify this plugin code, to get the data for the fields Image and name, and then echo that data into the output area?

Thanks

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function glmdobcat() {
$arg_list = func_get_args();
$cat_ID1 = $arg_list[0];
$cat_ID2 = $arg_list[1];
$numposts = $arg_list[2];
$catquery1 = 'numberposts=1000&category='.$cat_ID1; //sets up the query for id1
$catposts1 = get_posts($catquery1); //gets the posts from category id1
$catquery2 = 'numberposts=1000&category='.$cat_ID2; //sets up the query for id1
$catposts2 = get_posts($catquery2); //gets the posts from category id1
$metaimage = wp_get_post_meta($Image);
$count=0;  //sets the count to zero
$permid1 = array(); //defines permid1 as an array
$glmpostarray= array();
$count2=1;
if (empty($numposts))
$numposts='5';
foreach($catposts1 as $post1) :   //starts looping from the posts from query1
	$permid1[$count] = get_permalink($post1); //stores permlink from each post

	foreach($catposts2 as $post2) :  //starts looping from the posts from query1
 	 $permid2 = get_permalink($post2); //stores permlink from each post
	   	  if ($permid2 == $permid1[$count]) {  //checks if permlink is same
		 				$glmpostarray[$count2] = '<ul><li><a href="'.get_permalink($post2).'">'.$post2->post_title.'</a></li></ul>';
			$count2++; }
   	endforeach;

	$count++; //increments the counter
endforeach;

if ($numposts > $count2)
$numposts = $count2; 

for ($i=1; $i<=$numposts; $i++)
echo $glmpostarray[$i];

}