That is indeed the SeaFrance Moliere. The photos always make it look much worse than it really is because all the Dover ferries are fitted with cowcatchers to fit into the pads in Calais and Dunkerque and these scoop up the water and fling dramatic curtains of spray back over the bows. The ferries are all big enough these days, and all fitted with stabilisers, such that they hardly move. (I know you won't believe me!)
Cue for Paul to reminisce about the dreaded Princess Maud. Judging from the website below, he wasn't kidding!
"Of all the Irish Sea railway-owned ships, the Princess Maud is arguably the one most local people still speak of when reminiscing about rough winter crossings! Having no stabilisers, on a wild night she was said to be unbearable; her reputation for rolling mercilessly being well-earned. On one very bad night, my father arrived at Dun Laoghaire Pier to find not the Cambria or the Hibernia alongside, but the Princess Maud. He promptly turned around and went back home and made his crossing the next day!"
http://www.sealink-holyhead.com/railway/ships/princess_maud/home.html