When using a sheet-swap you are unable to show the sheet title, else when you select the parameter swap the title still shows, and the illusion is blown!!
However you can create the title in a sheet, and have that on the same sheet-swap parameter filter as the sheet it belongs to (putting them in a container together, so the title-sheet looks like the actual tittle
I've given a similar (but slightly more detailed) explanation here
but post back, if that doesn't make sense and I'll work you up an example.