Pre-orders?

Is there a Pre-Order Module for the Admin page?

How do I set up Pre-orders for customers so that their eCheck/Credit Card doesn't get charged until we tell them the product is in? Also is there a way to set Pre-orders up so that you can give a rough estimate to when the product will come in?

I have my Authorize.net (AIM) set to Authorize+Capture, is this correct for Pre-Orders and Back Orders?

Thanks

Using AIM, if you want to authorize the card at checkout, but not charge it until up to 30 days later, you need to set the module to "Authorize Only".

Then when you ship, you'll go into your Authorize.net account and capture the transactions for which you're collecting payment and shipping out their orders.

I also wanted to know how ppl do pre-orders on zen cart meaning, not to have the sold out image but to have a pre-order image so ppl know to pre-order. Also I do not want put a quantity because you don't know what it is going to be for the ratio of the boxes but customers still have the ability to order until the product comes and for us to know if we will have to order more. Is there a way to do this for Pre-orders?

Thanks