could do with some advice please

Finance in my company need a planning tool and CX seems a good fit. IT however already use Qlikview for some of their reporting so are tryingto insist that we use it rather than CX. Problem is, IT see 'Cognos' as only BI but obviously CX has the TM1 planning element.
Anyway, I need to demo a simple planning model for IT to show them what Finance need and try to explain why Qlikview can't do the same. Any ideas? I've downloaded the CX trial off the IBM site but I only have a laptop which is a 32 bit system and the trial won't install.
I could try a Cog reseller (I'm in London) but tried one already but after 3 chases they just don't seem interested.
Any help or advice??
Cheers.