well ... I do have a better way to suggest here ... just folow the 4 steps:
NOTE: make sure that your webcam is installed and plugged in.
step 1: go to www.picanom.com
step 2: select the tab "SNAP!"
step 3: allow the app to access your cam, and take the shots u want
step 4: click on the shot u want to save and download it.
:o) Congrats! you just took a picture with your webcam without any additional software :o)
.. thats how I do it on a daily basis!
oh ... and you can take avatar pictures as well - you know - these square images used to represent you in forum and blog profiles?