sorry i was gonna get back to you and then i forgot.
So changing the size of the ft image effects a lot cus this image is floated in absolute position there. And remember the evenTop height will never be fixed as sometimes you may have longer addresses etc. that could make that eventTop taller than rest.
.eventon_events_list .eventon_list_event .ev_ftImg{width:80px;}
#evcal_list .eventon_list_event a.sin_val.hasFtIMG .evcal_desc, .sin_val.hasFtIMG .evcal_desc{padding-left:****} <-- depending on the type of calendar you are building you may need more than this CSS