I don't see a reason to get that Creative Labs one over a Lucent (Agere is the new name they are using) v.92 modem (Mars3.2 chipset). There is virtually no price difference between the Lucent v.90 modems and the v.92 modems (starts at $8 on pricewatch).
Most of the Lucent v.90 modems on the shelf today are upgradeable to v.92, but there is no way to be sure unless you know what version of the chipset it uses.
For more information about Lucent LT Win Modem drivers:
Where to find the LT Win Modem Driver
I much prefer the Lucent LT chipset over Broadxent's chipsets. If it matters to you the Lucent LT chipset works under Linux, while last time I checked the Broadxent's do not. IMO, what you are paying for in the Creative Labs case is their brand name and I personally think their only decent products are their sound cards and speakers (Cambridge Soundworks which are good but not the best), everything else they make is mid to low end and living off the reputation of their sound cards.