Showing a Extrnal BSP page on top of generate planning layout web interfa

Hi Friends ,

I need to embed a customised BSP application with user interface on the top of the BPS layout generated using BPS_WB .

I tried showing it in the HTML code option using frames ..code sample given below ..

*----

<iframe

src="/sap/bc/bsp/sap/ztest/testlist.htm"height="600" width="950" scrolling="yes" border="0" frameborder="0" />

*----

But when i preview the application it does show my external BSP application in the frame but the generated BPS layout component below this HTML text component are not getting displayed .

I checked many of the WEB BPS documents but most of them talk about displaying the BSP application in the lower part of layout ..there it works as there is not component below the frame .

Appriciate a early response..