Help with a coding problem

[Illyahr]

I'm programming in the Complete Adventurer PrC's for the community files and I was wondering if you could give me some help on something.

Versions of the Animal Lord Prestige Class gain natural weapons while they are using their Wild Aspect ability. I've got it coded properly to show up only when active, but the damage increases at higher levels and I can't get that to show up properly. This is what I have so far:

Animal Lord - Apelord
Wild Aspect

[Eval, Post Levels, 10000]

var level as number
level = field[xTotalLev].value

if (level < 7) then
perform hero.child[wClaw].assign[wMain.1d4_4]
perform hero.child[xRend].assign[User.2d4_6]
else
perform hero.child[wClaw].assign[wMain.1d6_5]
perform hero.child[xRend].assign[User.2d6_104]
endif

As far as I can see, that should work. However, the damage keeps showing up as - + Str Mod instead of 1d4+Str Mod or 1d6+Str Mod. When I adjusted the size of the PC, it shows that the damage is showing up, but the hero is too small to do damage with it. Any ideas?