Well this should not really be necessary anymore because you have already removed the number by the Spam folder, but if you are completely nuts of ridding yourself of any possible spam, its really simple.  Odds are you’ve glanced past the button a hundred times.  Simply click on the Spam link in the left hand menu, and you will see two buttons, one reads “Delete Forever”, the other “Not Spam”.  Simply select all e-mails and click “Delete Forever”, and the spam is all gone.

Now you can add all of your external e-mail accounts to Gmail. Its pretty simple to set up. Instructions can be found here, taken from Google’s question and answer page.

This feature is currently only enabled for a limited number of users. We’re working on making it more available soon.

1. Click Settings from the top of any Gmail page.
2. Click Accounts.
3. In the Get mail from other accounts section, click Add another mail account.
4. Enter the full email address of the account you’d like to access, then click Next Step.

You can do this, and a lot more with the CustomizeGoogle plug-in that was recently released. Some of my favorite options are the ability to remove ads, click tracking, and image copying restrictions in Google Book Search, Rewrite links to point straight to the images in Google Images, and securing the Docs and Spreadsheets and Gmail areas in https.