Lifecam 1.4, cant seem to get the mic to work on it

Do you mean the camera can't works well with your new Nikon D50 battery? But how about your original battery. Maybe your new battery is not so compatible with your camera so the camera can't recognizes the whole information on the Nikon D50 battery chips.

If she can hear you - your mic is fine
The most likely cause would be her mic or your speakers - did you make your speakers default in Skype?
Vista
TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

1) Make sure your webcam mic is set as default
Vista
TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

2) During the recording you may be picking up feedback from your speakers - try using a set of headphones

try reinstall your webcam again and then reinstall skype and MS livecall. Better remove all and reinstall your lifecam first.

Turn down the Master Input Mic Volume

i have a GE 98980 headset and window vista wont reconize the mic but the headphones work fine. How do i get the mic to work?

Im not sure I understood exactly the issue but the solutions are more than one ...
you may just uninstall the web cam ...and set the mic you want to use and after that reinstall the web cam ...and you have every chances to be installed and the external mic to remain in use..
or ...to use the mic from the external pink entry of the pc ...just select it from the sound driver ...options..
in your capture program you might also have the choice for which mic to use ....
in your yahoo messenger for example you have this choice on preferences /audio device....
you also may find on your control panel ...sound and audio device /audio../and for the sound recording audio device ...select the one you want...
good luck !

LOOKING AT THE MIC ITS AT THE 1-2O CLOCK POSITION THE SMALL ****...DETAIL IS HERE ITS #3. http://www.microsoft.com/hardware/digitalcommunication/ProductDetails.aspx?pid=001.PLEASE DO NOT FORGET TO VOTE TY AND HAPPY NEW YEAR.RICHARDM69

you need to install the device driver.

Microsoft LifeCam VX-3000

Logetech Pro 9000

enjoy, and please rate my solutions

hey ,the installation software that you are using might be corrupted.
you can download the software for your cam from this link
Download Microsoft LifeCam VX-3000 Now