Provirus? Is it actively transcribed?

Nope.

A provirus is not active while integrated into a host genome in this way. Instead, it is passively replicated along with the host genome and passed on to the original cell's offspring; all descendants of the infected cell will also bear proviruses in their genomes. Eventually, in response to changes in the host's environmental conditions or health, the provirus will be activated and will serves as a template for massive transcription of its viral genome.

http://en.wikipedia.org/wiki/Provirus