0p1-9 are the original league kit. when Fellowship of the Ring first launched, they had leagues set up at various card shops. when you joined a league, you got the league kit and one of the deckbuilder cards (un-numbered).
0p10 was the card given away at Mines of Moria pre-release tournament events (one per participant).
0p11 was the card given away in SCRYE magazines leading up to the release of Realms of the Elf Lords.
0p12-14 were the cards included with the Fellowship of the Ring Extended Edition Deluxe box dvd set.
0p15 was the card given away at Realms of the Elf Lords pre-release tournament events (one per participant).
0p16 (non-foil) was available at conventions in the summer of 2002 and as a mail-in offer in the fall of 2002.
0p16 (foil) was available for participation in leagues in 2002.
0p17 (non-foil) was available was available at conventions in the summer of 2002 and as a mail-in offer in the fall of 2002.
0p17 (foil) was available for participation in leagues in 2002.
0p18 (non-foil) was available as a retail incentive for purchasing $10 of Battle of Helm's Deep
0p18 (foil) was available for participation in leagues in 2003.
0p19 was the card given away at Battle of Helm's Deep pre-release tournament events (one per participant)
0p20 was available from Decipher employees during the
Black Rider tours (one per player/participant)
0p21 was the card given away at Ents of Fangorn pre-release tournament events (one per participant)
0p22 (non-foil) was available as a retail incentive for purchasing $10 of Ents of Fangorn
0p22 (foil) was available for participation in leagues in 2003.
0p23 was the card givent to players for signing up for Lord of the Rings Online TCG early on after the official launch.
0p24 was the card given away during a LotR Online TCG promotion - for every $10 spent you got one copy.
0p25 was available at conventions in 2003
0p26 was the card given away at Return of the King pre-release tournament events (one per participant).
0p27 was given away by dAgents to movie-goers when Return of the King first played in theaters.
0p28 was given to particpants of Premier Series Qualifiers.
0p29 was given to particpants of State Championships.
0p30-47 were the Countdown to the King Collection, as described above.
0p48 was the retail incentive for Siege of Gondor ($10 purchase)
0p49 was the pre-release card for Siege of Gondor.
0p50-53 were the final cards in the Countdown Collection (mail-in certificate required)
0p54 was the pre-release card for Reflections events
0p55 was the pre-release card for
Mount Doom events
0p56-60 were another retail promotion ($10 purchase gets you that week's card)
0p61 was given to Premier Series Qualifier participants
0p62-67 were available only through the LotR Online TCG league program (join a league, get that week's league card mailed to you).
0p68 was available at DecipherCon 2004
0p69-78 were tournament prizes (rares went to first place, uncommons to second place, and commons to random participants)
0p79 was the release event card for Shadows.
i'm gonna stop there for now, it's getting late and i've gotta get up early.
i'll try to finish this off later.