Selecting Last Item Created?

I have a script that will generate a point list and build curves based on those points...but I really need to figure a way to select the last item created and assign it to a specific layer

I would be interested what kind of points you mean. If these points behave as usual objects, they are automatically selected upon creation. If that is the case, the assignment is simple:

CODE
editRenderLayerMembers -noRecurse yourRenderLayer ls -selection;

by points I mean edit points...I am taking survey data and using it to make an enviroment

I see. Edit Points go together with curves for example. You could construct your curve using the appropiate Edit Points of your survey data. Construct the curve with the points you want in the desired order and you can access them by using:

CODE
select -tgl curve1.ep[1];
select -tgl curve1.ep[2];
select -tgl curve1.ep[3];
select -tgl curve1.ep[4];
...

Does this help you? If partially, please describe the task a little bit more.