XP 

For defeating the dragon cult, Knolan, Dulin, Ceridan, Rathgar, Zorgin, and Haladorr gain:

If level 7: 5810
If level 8: 4480
If level 9: 3690
If level 10: 2800

For defeating two Megaraptors and a Couatl, Knolan, Dulin, Ceridan, Rathgar, and Zorgin gain:

If level 8: 1440
If level 9: 1200
If level 10: 900

For defeating Daudhir the Blue, Knolan, Dulin, Ceridan, Rathgar, and Zorgin gain:

If level 8, 10300
If level 9: 9500
If level 10: 7200

For freeing Eden the Copper, all PCs gain:

4000 XP

Treasure 

From the bodies of the defeated cultists, and looted from the dragon's horde, and maybe a trinket or two "borrowed" from the Elven Kingdom:

• 52,000 gp
  
• +3 Composite Shortbow (+1 Strength Add)
  
• Bracers of Armor +5
• Bearskin Armor (MIC 15)
• Hair Shirt of Suffering (MIC 109)
• Necklace of Warning (MIC 118)
• Potion of Barkskin +5
• Gauntlets of Throwing (MIC 104)
• Eyes of the Eagle
• Blue Dragon's Draught (MIC 157)
• Divine Scroll (Heal)
  
• Sepulchral Vest (MIC 133)
• Arcane Scroll (Hold Portal (25 gp), Magic Missile (25 gp)) 
• Arcane Scroll (Cause Fear (25 gp), Protection from Arrows (150 gp)) 
• Arcane Scroll (Enlarge Person (25 gp), Knock (150 gp), Message (12 gp 5 sp))
• Arcane Scroll (Magic Aura (25 gp), Mirror Image (150 gp), Unseen Servant (25 gp)) 
• Arcane Scroll (Charm Person (25 gp), Daze Monster (150 gp), Invisibility (150 gp)) 
• Arcane Scroll (Color Spray (25 gp), Pyrotechnics (150 gp), Whispering Wind (150 gp))
• Arcane Scroll (Cat's Grace (150 gp), Detect Scrying (700 gp), Mirage Arcana (1125 gp))
• Bracers of Armor (+2) 
• Divine Scroll (Delay Poison (150 gp), Detect Chaos/Evil/Good/Law (25 gp)) 
• Divine Scroll (Bane (25 gp), Cure Moderate Wounds (150 gp), Detect Poison (12 gp 5 sp)) 
• Divine Scroll (Cat's Grace (150 gp), Comprehend Languages (25 gp), Cure Moderate Wounds (150 gp)) 
• Greatsword +1 
• Oil of Darkness 
• Potion of Bear's Endurance 
• Potion of Bull's Strength 
• 2 x Potion of Cat's Grace 
• 2 x Potion of Cure Light Wounds 
• Potion of Darkvision 
• Potion of Eagle's Splendor
• Potion of Restoration 
• Potion of Misdirection 
• Potion of Spider Climb