On the IMDb forums for LOST GIRL someone has been kind enough to post all soundtrack info for episodes that have aired (
link).
For episode 108, "Vexed":
"Sour Cherry" by The Kills
"Habanera (from 'Carmen)" by A Man Da Band ft Amanda Clemens
"The Warning" by Neverending White Lights
"High Speed China" by The Music People
"Valley Of The Gun" by Shelter With Thieves
"Madman" by Clara Klein
"Dragonfly" by The Music People
"War Machine" by Crooked Valentine
"Thas Paso" by Tim Tickner
Hope that answers your question!