Depends on how long your patience lasts.
If you order from ebuyrealm, you should get it quite soon.
due to the sheer volume of people ordering dstt's from dealextreme, they're sold out, and the manufacturers are on short supply.
as for when? open a support ticket.
Uhh, only if you plan on leaving it in there for eternity.... The reason why it won't work is because the lite-fit carts are shorter than the phat ones, so technically yeah you could plug it in if you cut of that side thingy, the only trouble is that it would go in too deep and it would be very difficult to take it out.
I guess you could attach a string to it... But thats way to ghetto.