I want to record using Tascam with my peavey xr1220 mixer

SOURCE: not recording

You likely have to format the stick from the unit before using. Also there MAY be a size limit for the useable stick.

For a flight case, it is best to find one that SPECIFICALLY mentions use for your unit. Having the supports in the right area to protect the controls is most important.

SOURCE: i have the peavey xr

That's easily done. Simply connect the left(or right) output of your mixer to one of the channels on the peavey. Use any line input. Since the peavey is a mono system, there's no need sending a stereo mix to it.

SOURCE: I have purchased a peavey

You MUST turn off the echo from the computer OR remove the sound card to line in connections. The tape out goes through the sound card and immediately back out to the tape in and around it goes for feedback.

SOURCE: How do i hook a

You CAN drive the power amps from the main amp inout jacks BUT the rest of the inout of the 8600 would be dead then. You can connect the L and R from the FX24 to either the media RCA jacks or into the channel9/10 jacks. FOr the latter, use TRS cables. Leave the two selection buttons in the up position.