Valerie
SBH Insider
Race Charters for Les Voiles.
The ones listed on the above link to the Les Voiles site are mainly whole boat but there are also individual positions (e.g. on the Beneteau 47 EH01 @ $1600) At quick read, i do not see OnDeck listed but their website lists positions on a Farr 65 @ $1925. Whole boat and crew slots would be for the entire regatta. I do not know if it is possible to negotiate crew slots for shorter.
Crew Positions
Les Voiles has the boat seeker/crew seeker section linked above (not much there now)... and there is always the time-honored approach of hanging around the docks and bars. Years ago, someone on island posted with available crew slots. I have no idea if they still are on island, have a boat etc. but the person's contact info is in this thread.
Thanks Izzy! We actually did look into a couple of the charters but our dates were set in stone so it didn't work out. We don't arrive until the 13th so we miss training days and then we have to leave on the 20th to make it home in time for Easter with our kids. We are already planning another visit during Les Voiles when we could do a charter!
I remember seeing that post you linked years ago. That would be their dream-if anyone needed some last minute crew for a couple days they would be all over that!