Velmont said:
For the Cavalier, I don't think there will be any problem. I have the Sword and Fist version of it, so if they have made an updated version for 3.5, I would like you to give it to me.
Indeed.
For 3.5...
Requirements
Drop Weapon Focus (any sword)
No equipment requirements
Class skills
Added Handle Animal
Level Benefits
1:
special mount: Cavalier levels and Paladin levels stack to determine a mount's characteristics.
Lance bonus goes up every four levels (1, 5, 9) (+1, +2, +3)
No
Tall in the Saddle
courtly knowledge: Add class level to Knowledge (Nobility and Royalty) checks as a competence bonus
2: sword bonus goes up every four levels (2, 6, 10) (+1, +2, +3)
3: no mounted bonus
no Tall in the Saddle
4: no mounted bonus
5: lance bonus +2, no tall in the saddle
6: sword bonus +2
7: no mounted bonus, no tall in the saddle
8: no mounted bonus
9: lance bonus +3, no tall in the saddle
10:
unstoppable charge 5/day, sword bonus +3, no deadly charge
Full Mounted Attack: if more than 5' but no farther than single movement, can make full attack. can't be used with a charge
Unstoppable Charge: when making deadly charge, deal x4 damage (or x5 with lance)
Multiclass Note: may continue to advance as Paladin
These are the 3.5 changes. If I didn't mention it, it's still the same.