-rt kernel for Ubuntu 8.04.1

[Henry W. Peters]

I am on dial-up so Ubuntu Studio is, for now, pretty much out the 
window... (?) But I am trying, by bits & pieces to make useable, audio 
for Ubuntu Hardy, 8.04.1. A question for me now is, how do I obtain & 
install the -rt Kernel? & might this work (I have Jack, etc., Ardour & 
Rosegarden)?

Thanks a bunch for any tips, directions or whatnots.

Regards,
Henry