the Lifetime warranty that the OP is talking about only has one condition. you must bring it in every 5 years to be "inspected".
edit - and yes, first owner only.
CURRENT - ordered 10/26, home 1/142008 JK Unlimited,3.8L,6-spd,limited slip,dual tops,tow pkg,all power
SOLD1999 XJ 4.0L,AX15,NP231,D30HP,C8.25
STOLEN1993 XJ 4.0L,AW4 ,NP231,D30HP,C8.25:::C4X4 THB:GDI 3row:K&N:JKS QD: Dynomax#17340:MagnaflowCat#23221:Surco 45x60