No sound output from vista running computer

I built my computer last year and it ran fine with XP with everything working until recently I got a virus forcing me to reformat my hard drive. After doing so, I installed Vista since I couldn't find my XP disc. I have gotten everything to work fine except my sound. When speakers or headphones are plugged in I can go to my Realtek HD Audio Manager which tells me I have sound output from my device but no sound output from Windows sounds AIM Google Chrome or any other applications. The Speakers I'm using are harman/kardon HK195 stereo speakers. I have my computer set to side stereo speakers and my sound card is a Creative X-Fi soundblaster (or something of the sort) I have the most recent Vista drivers installed and I can't think of what the problem is, any help would be appreciated

I have onboard sound but it is enabled and in my device manager there is a check next to it and levels of audio going up and down but it only detects the sound and isn't outputing any sound for anything else as for my applications have no sound output levels
also my sound is not turned too low or muted

yup your right I was looking in the wrong spot but it doesn't matter, device manager--> Sound, Video and game controllers--> Creative SB X-Fi and Realtek High Definition Audio with no yellow next to them their statuses are they are working properly so its not the device but I still don't understand where the problem could be

don't worry about asking the obvious since you should never rule anything out but yes they're plugged into the right port and as I've stated I'm getting sound from my default device which is my realtek HDMI output but on the volume mixer where it says the device is getting sound, the applications aren't getting any of the sound, like if I test the devise in the audio manager it will work test fine just it won't receive sound from anything else

It must have been that because now my sound is working perfectly you are in my gratitude thank you