#thx Mr. Beregon, and think also googled it, and there was an ' admin ' that had replied any jam that's more than 1 month is sometimes not approved, and because it takes too much space on the jam - page, or it's not the best for the jam - list . . .
not sure what's happened, and atm these are my settings . . .
- published == checked
- not listed == unchecked
however, and the jam is 32 days, and also has 8 day voting, and not sure total of 40 days it doesn't appear on the list of jams, or then if it has been approved, or perhaps it's not a ' legal ' jam, or more have done something wrong, or etc etc . . .