Hi Jon,
The sensors you mention before won't be useful to detect acoustic vibration, you will need to look for another one. We still have not tested any acoustic sensor, but we have tried many other types of sensors on the prototyping board and we have been able to cope with everything we have found (you may need to add some electronics, depending on the kind of sensor you choose).
In case you need more information about Waspmote or its sensor boards, you can take a look here
http://www.libelium.com/support/waspmoteAnd here you will find the technical guide for the prototyping board
http://www.libelium.com/documentation/w ... rd_eng.pdfRegards.