Try the non-flash version. I used it this morning, before replying to you and it worked just fine. It has more options than the flash version. There's a link situated above the search box of the flash version to switch between them.
This is the link for the non-flash version. Then, click on Advance parametric search in the filters section and you will find lots of filters, including package and serial interface.
This link will guide you directly
http://www.freescale.com/webapp/search/MainSERP.jsp?SelectedAsset=Product Pages&nonFlash=true