Here's the five reguliar versions. I'll have to take a look at the Epic stuff before I can post that.
Summon Monster Horde I
Conjuration (Summoning)
Level: Clr 5, Sor/Wiz 5
Components: V, S, F/DF
Casting Time: 1 full round
Range: Close (25 ft. + 5 ft./2 levels)
Effect: A number of summoned creature, no two of which can be more than 30 ft. apart
Duration: 1 round/level (D)
Saving Throw: None
Spell Resistance: No
This spell summons an outsider (extraplanar creature) that attacks the character's enemies. It appears where the character designates and acts immediately, on the character's turn. It attacks the character's opponents to the best of its ability. If the character can communicate with the outsider, the character can direct it not to attack, to attack particular enemies, or to perform other actions. Summoned creatures act normally on the last round of the spell and disappear at the end of their turn.
Summon Monster Horde summons 3d6 of one type of creature that can be summoned with Monster Summoning I.
When the character uses a summoning spell to summon an air, chaotic, earth, evil, fire, good, lawful, or water creature, it is a spell of that type. For example, summon monster I is a lawful and evil spell when cast to summon a dire rat.
Summon Monster Horde II
Conjuration (Summoning)
Level: Clr 6, Sor/Wiz 6
As summon monster horde I, except the character can summon 3d6 outsiders from the 2nd-level list or 4d6 outsiders of the same type from the 1st-level list.
Summon Monster Horde III
Conjuration (Summoning)
Level: Clr 7, Sor/Wiz 7
As summon monster horde I, except the character can summon 3d6 outsiders from 3rd level list, 4d6 outsiders from the 2nd-level list or 5d6 outsiders of the same type from the 1st-level list.
Summon Monster Horde IV
Conjuration (Summoning)
Level: Clr 8, Sor/Wiz 8
As summon monster horde I, except the character can summon 3d6 outsiders from the 4th level list, 4d6 outsiders from 3rd level list, 5d6 outsiders from the 2nd-level list or 6d6 outsiders of the same type from the 1st-level list.
Summon Monster Horde V
Conjuration (Summoning)
Level: Clr 9, Sor/Wiz 9
As summon monster horde I, except the character can summon 3d6 outsiders from the fifth level list, 4d6 outsiders from the 4th level list, 5d6 outsiders from 3rd level list, 6d6 outsiders from the 2nd-level list or 7d6 outsiders of the same type from the 1st-level list.