It is probably a bit easier to just create two new folders with names like Personal and Business. They can be inside the current Inbox or on the same top level as the Inbox. Click on New in the menu bar and select Folder... . You will get a dialog box that will let you name the folder and choose its location.
To create Rules to sort incoming mail ...
1) Select Rules and Alerts from the Tools menu.
3) Click on New Rule in the Rules and Alerts screen.
4) Select Start with Blank Rule in the Rules Wizard. Choose Check messages when they arrive and then click the Next button.
5) Put a check in Through the specified account in the Step 1 box. The On this machine only box will also be checked.
6) Click on specified in the Step 2 box.
7) Choose an e-mail account from the drop down list in the Account screen and click OK.
8) Click Next in the Rules Wizard.
9) Put checks in Move it to the specified folder and Stop processing more rules in the Step 1 box.
10) Click on specified next to the word folder in the Step 2 box.
11) Select the desired target folder from the list and click on "OK"
12) Click "Finish" in the Rules Wizard.
13) Click on "Apply" and then "OK" in the Rules and Alerts screen.
14) Repeat the above steps for as many accounts as needed.
You can also apply any combination of created rules to existing messages in the Inbox:
1) Select Rules and Alerts from the Tools menu.
3) Click on "Run Rules Now..." in the Rules and Alerts screen.
4) Put check marks in for the rules you wish to apply
5) Do not put a check in the sub-folders option.
6) Click on Run Now.
To create Rules to sort incoming mail ...
1) Select Rules and Alerts from the Tools menu.
3) Click on New Rule in the Rules and Alerts screen.
4) Select Start with Blank Rule in the Rules Wizard. Choose Check messages when they arrive and then click the Next button.
5) Put a check in Through the specified account in the Step 1 box. The On this machine only box will also be checked.
6) Click on specified in the Step 2 box.
7) Choose an e-mail account from the drop down list in the Account screen and click OK.
8) Click Next in the Rules Wizard.
9) Put checks in Move it to the specified folder and Stop processing more rules in the Step 1 box.
10) Click on specified next to the word folder in the Step 2 box.
11) Select the desired target folder from the list and click on "OK"
12) Click "Finish" in the Rules Wizard.
13) Click on "Apply" and then "OK" in the Rules and Alerts screen.
14) Repeat the above steps for as many accounts as needed.
You can also apply any combination of created rules to existing messages in the Inbox:
1) Select Rules and Alerts from the Tools menu.
3) Click on "Run Rules Now..." in the Rules and Alerts screen.
4) Put check marks in for the rules you wish to apply
5) Do not put a check in the sub-folders option.
6) Click on Run Now.