I heartily recommend you use Shadowrun to play Shadowrun
I second that. Not that I can judge in this particular case, but all convertions I've seen generally sucked big time. And I reference GURPS-WoD here primarily.
But to whom it may concern: there is a nifty system called "Savage Worlds" out there, which is so simple, that even a major convertion is a no-brainer. It's sort of universal, and by "sort of" I mean that there is no way you can avoid that Indiana Jones feel inherent to it. But if you like that style, enjoy your "Indiana Jones and the Renraku Arcology".