I believe that the only information with regard to Shalelu in Armageddon Echo pertaining to her stats is that on Page 14, which lists her as being a CG female elf ranger 4/fighter 2.
On page 9 of Hook Mountain Massacre a stat block for her as a ranger 3/fighter 2 was given (I assume that Rise of the Runelords Path officially takes place before Second Darkness, so she was lower level back then), which includes information that she had favoured enemy (goblinoids)+2, Strength 12, Dexterity 16, Constitution 14, Intelligence 10, Wisdom 13, Charisma 8, and a feat selection of: Dodge, Endurance, Point-Blank Shot, Precise Shot, Rapid Shot, Track, and Weapon Focus (longbow).
Her listed skills back then (including modifiers) were Climb +7, Hide +9, Listen +9, Move Silently +9, Search +2, Spot +3, Survival +7, and Swim +7.
Her listed languages were Common, Elven, Giant, and Goblinoid.
Her listed gear was a wand of cure light wounds (34 charges), +1 studded leather armour, +1 composite longbow (+1 Str) with twenty arrows, a masterwork shortsword and 125 gp in loose change.
Her described tactics were that she prefered to fight with a bow, resorting to melee only when truly desperate or when an ally was in need of healing with the wand.
Since Hook Mountain she seems to have gained 1 level of Ranger, and I would assume that she will have advanced her skills and feats, and upgraded her gear accordingly.
