The idea of cavalier talents (and why they are a good idea) is first presented in The Genius Guide to the Talented Cavalier, along with a large number of talents (many adapted from the abilities of cavalier archetypes). The new talents presented here can be used with that book, or added as new options for the traditional cavalier class.
To use these talents with the core cavalier class, simply allow a cavalier to replace any of the following class features with an edge, talent, advanced talent, or grand talent as appropriate. Edges - challenge, mount, iaijutsu strike. Talents - banner, cavalier's charge, expert trainer, greater tactician, tactician, and order abilities gained at 2nd and 8th level. Advanced talents - greater banner, master tactician, mighty charge, order abilities gained at 15th level. Grand talents - supreme charge. If a cavalier gives up the a core ability (such as banner) for a talent, when he would normally gain an improved version of that ability (such as greater banner) he may either choose to gain the core ability, or to pick a new talent.