I am in Besaid and have found both sets of ciphers. I am on top of the hill and cannot find anything up there. Is there anything up there that comes into effect with Wakka? Such as his parents sphere or something important?

If I remember correctly, I think it was just a chest with Garment Grid or something, no Sphere though.

is there another quest involving Wakka in FFX-2?

Yeah, but it has to do with Beclem --- basically, complete the stuff related to him and work carefully with the commspheres in Chapter 4. If you need more details, see the Mascot Speed Guide at GameFAQs.

........that s all for Wakka

Indeed it is, though the Beclem thing is cool, I thought anyway.