I've created a custom login page for my customer community login members. Here is my controller for the login page:

/**
 * An apex page controller that exposes the site login functionality
 */
global with sharing class CustomLoginController {
    global String username{get;set;}
    global String password{get;set;}
    global CustomLoginController () {}
    global PageReference forwardToCustomAuthPage() {
        return new PageReference( '/CostCenterLogin');
    }
    global PageReference login() {
        return Site.login(username, password, null);
    }

}

Here is the controller for my landing page:

public with sharing class topIdeaExt {
           
    public List<Idea> getRecent2()
    {
        return [SELECT Id, Title, Name__c, CreatedDate, Voting_Status__c FROM Idea order by createdDate desc Limit 2];
    }
    public List<Idea> getMostVoted2()
    {
        return [SELECT Id, Title, Name__c, CreatedDate, Voting_Status__c FROM Idea order by VoteTotal desc, CreatedDate desc Limit 2];
    }
    public List<AggregateResult> getTop6Contributors()
    {
        return [SELECT CreatedById, CreatedBy.Name Name  FROM Idea group by createdbyid, CreatedBy.Name order by count(CreatedById) desc limit 6];
    }
    
     // Code we will invoke on page load.
    public PageReference forwardToCustomAuthPage() {
        if(UserInfo.getUserType() == 'Guest'){
            return new PageReference('/CostCenterLogin');
        }
        else{
            return null;
        }
    }

    public topIdeaExt() {}
}

I've set up the login and landing pages in my communities setup and added customer community login user profile to my settings already. When I go to login as a test user, it seems to load, but it doesn't take me to the landing page.

Any ideas on how to fix this issue? I've been using this as a reference: 
http://appirio.com/category/tech-blog/2013/10/create-custom-salesforce-communities-login-landing-page/

Thanks!