If your player is skipping, your selected bandwidth might be too high for your actual Internet connection. You need to lower your bandwidth setting. On the player, underneath the video is the option "Select Bandwidth." The setting that is linked is the option you can change to. Selecting a smaller number than the current displayed one will restart the video at a lower bandwidth setting. This should prevent skipping.
Streaming video over the Internet requires a great deal of bandwidth, and unfortunately 56K and slower connections are not fast enough to give you a TV-quality picture. Your best viewing experience will occur with a DSL, cable modem, or T1 Internet connection.