Sorry, but if you shot DVCPRO HD, it only comes in as DVCPRO HD. Actually, that's better, because all you are doing is re-wrapping the MXF files into QT wrappers and copying them to the media drive...there is no recompression at all happening. The files are full quality.
If you want it to be ProRes, you need to Media Manage to the format you want after you import. But, if I were you, I'd stick to DVCPRO HD. Don't add a layer of compression.
And the Sony utility won't help, that's for Sony cameras (Your's is Panasonic), and for the XDCAM format...which yours isn't...it's P2.
You can use a professional MXF Converter to convert MXF to ProRes. As far as I know Brorsoft MXF Converter for Mac has five types of ProRes Codecs for transcoding to.
Or you can use the Media Manager inside FCP to do so after you import the footage...and it's free.
Best to leave it DVCPRO HD. You won't be recompressing it, you'll be working full res, and FCP was designed to work with DVCPRO HD native for many many years. I've delivered many broadcast projects shot and edited DVCPRO HD.
No need to go ProRes with this footage.