Adding Webpart from Add a web part does not shows it on the page

http://office.microsoft.com/en-us/sharepointserver/HA011605831033.aspx

# On the page that you want to edit, click Edit Page in the Actions list.
# At the top of the page in the shared view, click Modify Shared Page to modify the shared view.

To add Web Parts to your personal view without affecting the view of other users, click Modify My Page from the personal view.

Note The text for the link at the top of the page changes depending upon whether you are looking at the shared view or the personal view.
# Point to Add Web Parts.
# To add a Web Part from an existing Web Part library, click Browse.

The page opens in design mode, and the Add Web Parts pane appears.
# In the Add Web Parts pane, click the library you want to browse.
# In the Web Part List, find the Web Part you want. Click Next to view more Web Parts.
# To find the Web Part you want without browsing through all of the Web Part libraries, click Search after pointing to Add Web Parts.
# In the Search text box that appears in the Add Web Parts pane, type a word describing the Web Part for which you are looking, and then click Go.

A list of Web Parts matching the search appears in the Add Web Parts pane.