listing fee for 99p auction would be 15p, then you get charged a percent of the final fee and if you accept paypal they will take another chunk off you.
you can sell without pics but usually get a lower amount than you could. having said that i saw a top go the other day with a truly awful pic and description. pic just showed design on front of top so couldnt see style at all and description didnt tell you anything except it was by red herring. it went for over £8! was gobsmacked! no way i would pay that without knowing what i was getting.
good luck with it, is almost as addictive as buying!