Best way to carry the values throughout the carts in WAP with ASP

Dear Sir,

We are developving a application in WAP. In our application we need to carry some values through out some cards. I am using ASP as scripting language, to fetch the data from database.

I tried to carry data by using Sessions and postfield. In both ways our application is working in Similator. But its not working in some mobiles. Even i tried with both options and indivisual.

And we are also getting an error in a Mobile Saying that (Data OverFlow).

So, Please suggest any one the Best way to carry the values throughout the carts.

Thanks and Regards,
Anil.
(India).