okay thanks - fixed it!
Using script detailed below
thumbfilename = new Array(); //declare array which holds thumbnail filenames
//var loaded = "no"; //determines if php script loaded or not
//loadVariables("photogallery.php",this); //load vars from php script
thumbfilelist = new LoadVars();
thumbfilelist.onLoad = function(success)
thumbfilename = thumbfilelist.thumbs.split(",");
Am I using it properly? I got some of it by searching actionscripts.org.
To be honest I'm not so sure about the syntax here - talking about blah.onload = function(success) part. Is success a reserved boolean variable?