Z Class, MAN-MCO

I'm looking to fly MAN-MCO on 20 Dec 09, returning 8 Jan 10.
The Virgin website is showing 1943 - Z class out, D class return.

Does this mean that any Z class fares for the return have already gone?

I know there's limited availability on this popular route, but I'm trying to work out whether it's likely the price will increase or decrease. Any advice would be appreciated.

Also, the same flight is coming up at around 1800 on other websites (eg ebookers). How can they be so much cheaper than booking direct?

[honey lamb]

Yep! Expert Flyer shows that there are no Zs left on the MCO-MAN leg on Jan 8th

[buns]

I think you can take it that as the fares using dates either side are showing £300 cheaper that all the Z fares have gone[n]

I would imagine that as this is the weekend after the New Year there will be many getting back after a school break or long winter break. I do not think fares will get cheaper, so if you can change your dates by a day or so, then go for it

buns