its been a couple of years since I used the Audiophile but I can probably walk you through it.
the Audiophile control Panel should be pretty much identical to what SteveJ posted earlier in the thread.
What you need to do is make a couple of presets that you can load:
1-transferring from digital source
2-playback from internal harddrive
sounds like you've heard sounds from the speakers so you have the hardware setup correctly.
start off by setting up your standard playback preset. open up a media player(winamp, itunes, real, wmp, etc) and play a file.
when you have everything working click "save" on the control panel and label it something self-explanatory. if you will be playing multiple sample rates you might want to set up 2 playback presets, 1 for 44.1 and the other for 48.
once you have your playback presets created hook up the digital source you want to transfer and the recording app you will use.
go ahead and hit play on the source and record on the app. in the control panel you will have to set the clock source to spdif or external. now match up the sample rate to the source (this is crucial to avoid the "slow" or "chipmunk" sound - the Audiophile does not auto sync sample rate). on the "monitor mixer" tab, unmute everything and drag the levels all the way up. on the "patchbay/router" tab will have to select various settings...if I remember correctly, you need to change 1 setting on the left and 1 on the right. make a change then check if the recording app is showing levels. this is more crucial than if you can hear the digital source. once you get levels showing in the app and you can hear it over the speakers, click save and name it something obvious...again, make a second preset with an alternate sample rate.
when I used this card I had 8 different presents created:
digi in 44.1
digi in 48
analog out 44.1
analog out 48
digi out 44.1
digi out 48
anaolg in 44.1
analog in 48
its alot easier to just load>select prest than to manually change the control panel settings everytime you did something