is tsubasa chronicles an older version of card captors?

No. Tsubasa doesn't have anythign to do with cardcaptors except for the fact that it has some of the same characters. Clamp often uses the same characters in diffrent stories.

tsubasa is the future of cardcaptor....
becoz princess sakura in tsubasa is shaoran li and sakura kinimoto's daughter...does that satisfy you?...

no because theres nothing can compare to cardcaptor sakura to tsubasa

yes, it is

tsubasa is different from card captors

maybe,maybe not.tsubasa chronicle had lot's of spoilers from CLAMP anime.kinomoto sakura and li syaoran is real syaoran's parent.they to known as the clon of real syaoran and real sakura.in xxxholic kei,watanuki just dreamed about his mother and father.he tried to grab their hand.suddenly,watanuki just fell down from the school windor and he almost Lost his live.in tokyo revelation,syaoran relif that watanuki is alive.syaoran don't want watanuki to die that easily.after the dissipering of watanuki....syaoran,yuui,kurogane and mokona soel decide to go where watanuki lived.....in yuuko's shop."never forget that day"said sakura when they gone to another world.

HECK NO
the story is different. i mean, some similar characters are there, but trc and ccs are different. later in the manga, ccs sakura makes an appearance,so...

No, Tsubasa is different from Cardcaptor Sakura.

It's like a crossover...

acording to the manga tsubasa is a crossover of all clamp universe stories, in some parts even in the cardcaptors universe in the same as the witch yuko(from xxxholic) apears even the evidence is pointing that the syaoran in this serie is actually the son of sakura and syaoran from cardcaptor.

acording to the information in the manga the     @loversdestiny sugestion is incest between syaoran(son) and the clone of that syaoran,