The odds are you're never going to get those 'extras' like effects and such working under Windows Vista or newer due to the change-over MS made to the sound sub-system.
"Universal Audio Architecture (UAA) is an initiative unveiled in 2002 by Microsoft to standardize the hardware and class driver architecture for audio devices in modern Microsoft Windows operating systems. ... Starting with Windows Vista, Microsoft requires all computer and audio device manufacturers to support Universal Audio Architecture in order to pass Windows Logo."
"The goal of the Universal Audio Architecture is to solve a very common problem in modern Microsoft Windows products, that of inconsistent support for audio. Due to the lack of a common system by which audio devices could describe their capabilities to the operating system, not to mention a lack of ability to control those capabilities, audio device manufacturers (such as Creative Labs, Realtek, Turtle Beach and others) have had to provide a series of control panels and custom interfaces to let a user control the device. This, in turn, requires kernel-mode drivers so that the user's actions can be communicated to the hardware itself. Poorly-written audio drivers have been a common source of system instability in Windows, especially with games that make use of extended audio card capabilities. These concerns prompted Microsoft to disable the audio stack entirely by default in Windows Server 2003."
You're actually lucky RealTek (and your MB manufacturer) were nice enough to provide ANY newer driver. A LOT of people with older sound cards got to go buy new ones because the manufacturers didn't want to write even basic Vista+ UAA drivers for anything that wasn't their latest and greatest product.
Hope that helps...