From the official CFC site: [1]
Chelsea will play Everton away in the fourth round of the Carling Cup.
We last played the Toffeemen in the competition in a two-legged semi-final in 2008, winning both games before losing the Final to Tottenham.
The Blues were also successful in a 2002 quarter-final and in League Cup meetings in 1992 and in 1985. We have never gone out of the competition to Everton.
The tie will be played on Tuesday 25th or Wednesday 26th October.
The full draw is:
Wolves v Man City
Cardiff v Burnley
Blackburn v Newcastle
Arsenal v Bolton
Stoke v Liverpool
Aldershot v Man United
Crystal Palace v Southampton
Everton v Chelsea