There is no reason why it would work any differently. I'd have to look at the code to see why it isn't working. Really date works exactly like an int as the database uses a timestamp as the date.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.