How to make old decks work in manalink 3?

I have a lot of old decks that don't get recognized when I load them but the info in the files look about the same to me. Do I have to recreate them all? Or is there something I can tweak in the files? Here's an example of one that doesn't load:
;Strength in death
;
;User
;User E-Mail
;24/11/2012
;1
;4th Edition
;
.11947 2 Festerhide Boar
.11986 1 Hollowhenge Scavenger
.12212 2 Hunger of the Howlpack
.12031 2 Morkrut Banshee
.12051 2 Reaper from the Abyss
.12076 2 Skirsdag High Priest
.12080 2 Somberwald Spider
.12282 3 Tragic Slip
.12283 2 Ulvenwald Bear
.12289 2 Wakedancer
.2979 4 Gaea's Blessing
.10873 4 Awakening Zone
.11001 3 Nest Invader
.9759 2 Creakwood Liege
.1506 2 Putrefy
.10309 2 Maelstrom Pulse
.410 1 Diamond Valley
.12 4 Bayou
.1726 2 Golgari Rot Farm
.1513 1 Gaea's Cradle
.10787 1 Khalni Garden
.10629 2 Oran-Rief, the Vastwood
.91 3 Forest
.239 9 Swamp
;Strength in death
;
;User
;User E-Mail
;24/11/2012
;1
;4th Edition
;
.11947 2 Festerhide Boar
.11986 1 Hollowhenge Scavenger
.12212 2 Hunger of the Howlpack
.12031 2 Morkrut Banshee
.12051 2 Reaper from the Abyss
.12076 2 Skirsdag High Priest
.12080 2 Somberwald Spider
.12282 3 Tragic Slip
.12283 2 Ulvenwald Bear
.12289 2 Wakedancer
.2979 4 Gaea's Blessing
.10873 4 Awakening Zone
.11001 3 Nest Invader
.9759 2 Creakwood Liege
.1506 2 Putrefy
.10309 2 Maelstrom Pulse
.410 1 Diamond Valley
.12 4 Bayou
.1726 2 Golgari Rot Farm
.1513 1 Gaea's Cradle
.10787 1 Khalni Garden
.10629 2 Oran-Rief, the Vastwood
.91 3 Forest
.239 9 Swamp