Browse to your SharePoint page where you want to add a web part. If the page is in Personal View change it to Shared View from the Modify Personal Page drop down menu in top right corner of the page and then follow these step to add a new web part:
Click
Modify Shared Page -
Add Web Parts -
Browse.
Click on
Virtual Server Gallery.
Drag and drop a web part from
Web Part List into a drop zone on the page. Or select a zone in the
Add to list and then click
Add.
Click on link
Click here to configure this web part on added web part.
Then click button
Open wizard… in the tool pane that appears to right in the page and follow the wizard to configure the web part.
See how to configure: Filter Web Part, Trend Web Part, Chart Web Part, Table Web Part or Z Graph Web Part.