Hi trenty
Use hdmi cabling from panasonic to amp so you get hd sound, then assuming your amp can do it, use component cable (the 3 blue, yellow, red cables) connector from amp to tv.
Without seeing your amps manual, I am assuming it will allow hdmi to be 'downconverted' to the component connectors.
If not, you will have to use conponent connections from panasonic to amp, with an optical lead attached too, but if thats the case, you will not receive HD sound (it can only be sent via HDMI), only Dolby 5.1.
I'm no expert without the actual manual, so I might be wrong above....anyone agree with me?
Hope that helps.........