[Zope-dev] Need to instantiate zclass in location other than current

I have created a zclass and want to create a new instance of this class and have it be child of some other know object in the tree. Given that we know the path (url) to the new prospective parent how do we do this. A second question. I need to manage lists of these zobjects within other instances of the same, is there a reason to store the url vs the object(s). I have has some problems getting back a string repr of the object "<instance of .." instead of the object? It would probably be better for me (the code) to store objects thus not need to get the object each time I want to call a method... thanks, Max