re: I really just want the default Entry Card template with the search function added. Is this possible?
Then, I highly suggest the cMap template instead. You can use the Template Customizer feature to really tweak it even to the point where it is pretty close to the Default Template. Take a look at the cMap temnplate. The background color and gradient can be turned off as well as the drop shadow. It is not exactly like the Default template, but it is pretty close. The cMap template also includes the category filter and the keyword search features.
If you want, I can process the exchange. Let me know.