SPF fights return-path address forgery and makes it easier to identify spoofs. Domain owners identify sending mail servers in DNS. SMTP receivers verify the envelope sender address against this information, and can distinguish authentic messages from forgeries before any message data is transmitted. To learn more and create to create an SPF record for your domain visit openspf.org.

There are two different methods of adding the record you created useing the wizard at the SPF site depending on what type of account you have with WestHost.

WH 3.0

You must create a support ticket and have WestHost add the record for you.  Make sure you include the text from the output you got from the SPF site.  It is best to give them the full string that you want them to add and not just what was in the output box. If you look at the output generated by the Continue button you'll see the suggestion for your record..

example.com IN TXT "v=spf1 a mx ~all"

WH 4.0

You can actually add the record yourself via cPanel if you have a newer WH 4.0 account.  Log into cPanel via cp.westhost.com and then look for Advanced DNS Zone Editor under Domains on the right.  On the Advanced DNS Zone Editor page you'll see the following input fields.

Name: example.com
TTL: 14400
Type: TXT
Address: "v=spf1 a mx ~all"

NOTES:
Of course you'll want to change example.com to match your domain.

I've used "v=spf1 a mx ~all" in the examples above and for many people that may be all that is needed.  Use the wizard on the SPF site to determin what you should be useing for the Address part of your record.  Yes in both cases it should be entered with the double quotation marks around it.