Catch with illegal glove disallowed.

[bsaucer]

1. With runners on base, batter flies out. After all play has ended, it is discovered that the catch was made with an illegal glove. Where do you place batter and runners in each case if:

a. Batter goes to dugout after catch?
b. R1 remained on first?
c. A runner is put out on appeal for leaving base too soon?
d. R3 tagged up and then scored?

2. Would a catch be disallowed if made by:

a. A first baseman using a glove instead of a mitt, or by other fielder using a first-baseman's mitt?
b. A pitcher using a white glove?