bug fixes

fixed a couple of bugs regarding depreciated php functionality. basically, you can no longer pass by reference in php, only pass by value. 

there is a bug in the cck_mixcd.module code. when a map is initially saved, everything is fine. however, if you click on edit to edit the existing node, the map doesn't load the correct zoom information and it loads the default marker instead of the mixcd marker. i'll try to look more into the problem tomorrow or thursday.