DnD 4E question

So I'm dming a game and they just hit lvl 3, so I'm running their characters sheets through the DDI builder, and I noticed its add the ability's mod+1/2 lvl to the attack roll but only the mod (without the 1/2 lvl) to damage (and other things such as lay on hands) is this right? Do you only add the Mod to damage. If someone could clearify this for me that would be great.

That's correct. Half-level only adds to attacks, skill checks, ability checks, initiative, and anywhere else it specifically say it adds it to. Damage isn't one of those things, unless an exception on a power card says so.

Thank you I though I was going crazy.