I found the TMP Holiday deal post under the Road Race sub forum and it still seems to be open. Signed up for the 3 day weekend but not sure if they'll still accept it this late. (and it does say Thursday but even if they meant weekday how can you do a 6 or 10 day?)
www.ReddawnEntertainment.com has 4 Thursdays at TMP....usually the last Thursday of the month except July(4th Thursday lol) This includes Road Course and Drag Strip ALL DAY LONG!! limited number of riders as half are members and half are "day passers."