If the DV-I connection is not used, you can connect it with a HDMI-DVI cable. You will need a Spdif cable for the audio. The same with components (not composite). A components cable will do the job.
To use it with your Beo4, you will need a PUC update, I guess. Then, you need an IR transmitter connected to the BV7.
I let you the mapping for the Beo4: