I take it you're using the Expert Grid, then? Because on the Standard grid, he goes past it no matter which way you go. Unless you backtrack to the start of his area as soon as you get a Lv. 1 Key Sphere and enter Kimahri's area.
Btw, it's spelt "Seymour", not "Seymore". ;-)
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Signature credited to Nathan (or whatever he decides to call himself next)MSN address: yamiken (at) hotmail (dot) co (dot) uk
[size=6](You know the drill, remove the spaces, replace the at with @ and the dot