I broke your script with indentations, is there something that I did wrong?
!power --format|dnd4e --name|@{power-3-name} --title|@{class} Attack @{power-3-level} --usage|@{power-3-usage} --action|@{power-3-action} --emote|Block's attack surrounds a foe with a shroud of crackling lightning, threatening retribution for strikes against his allies. --charid|@{character_id} --Keywords| Augmentable, Lightning, Psionic, Weapon --Range|@{power-3-range} --Target(s)|One creature --attack|[[1d20+@{power-3-attack}]] --defense|@{power-3-def} --damage|[[(1*@{power-3-weapon-num-dice})d@{power-3-weapon-dice}+@{power-3-damage}]] lightning damage. Until the start of your next turn, the target takes [[@{constitution-mod}]] lightning damage whenever it hits one of your allies. --text1|**Augment 1** --^1Hit|As above, and, until the start of your next turn, the target also takes the lightning damage whenever it shifts to a square adjacent to one of your allies.
This is what it shows:

Also, I had problems getting the text only line to even show, until I did
--text1|**Augment 1**
At first I tried
--text|**Augment 1**
which didn't work.
Edit:
I finished the macro, and it still doesn't work. I figured I'd give you the finished macro:
!power --format|dnd4e --name|@{power-3-name} --title|@{class} Attack @{power-3-level} --usage|@{power-3-usage} --action|@{power-3-action} --emote|Block's attack surrounds a foe with a shroud of crackling lightning, threatening retribution for strikes against his allies. --charid|@{character_id} --Keywords| Augmentable, Lightning, Psionic, Weapon --Range|@{power-3-range} --Target(s)|One creature --attack|[[1d20+@{power-3-attack}]] --defense|@{power-3-def} --damage|[[(1*@{power-3-weapon-num-dice})d@{power-3-weapon-dice}+@{power-3-damage}]] lightning damage. Until the start of your next turn, the target takes [[@{constitution-mod}]] lightning damage whenever it hits one of your allies. --text1|**Augment 1** --^1Hit|As above, and, until the start of your next turn, the target also takes the lightning damage whenever it shifts to a square adjacent to one of your allies. --^0text2|**Augment 2** --^Hit|An additional [[(1*@{power-3-weapon-num-dice})d@{power-3-weapon-dice}+@{power-3-damage}]] lightning damage. Until the start of your next turn, the target takes [[@{constitution-mod}]] lightning damage whenever it hits one of your allies.
Here's what it looks like:

Finally...is it my imagination, or has the space between the top of the power card and the name of the power gotten smaller?