I'll start with my configuration first. Server3 is the Main SharePoint 2007 Server. It contains the central administration page. Server 4 is my SQL 2008 Server instance (SERVER4\SQL08InstanceName). Report Server is also installed on Server4. Now I will explains so far what I have done and what it has netted me. The SQL Server is set to run as a Network Service. Report Server is set to use MyDomain\SQLRpt. I have set that user as trusted for delegation in Active Directory, it is setup in the SQL OU, no SPN on the account. Now before I went to the Report Server Creation, I installed the Web-front end onto Server4. I then setup my Users for my upcoming sites (MyDomain\SharePointWebA and MyDomain\SharePointWebB) I then created my 2 currently needed Web Apps in SharePoint (SharePoint on Server3 port 80, NTLM, No Anonymous, no SSL, default zone, MyDomain\SharePointWebA w/ correct Password, restart IIS Automatically, Server4\SQL08InstanceName WSS_Content, Windows Authentication; SSRS on Server4 port 1440, NTLM, No Anonymous, No SSL, default zone, MyDomain\SharePointWebB w/correct Password, Restart IIS Automatically, Server\SQL08InstanceName WSS_Content_f1807a4f36c14e738c015040e2bcdc04, Windows Authentication). I then went in and created a site on for Server4:1440 with the url: server4:1440/sites/ReportServer. After this I installed rsSharePoint_x64.msi on both Server3 and Server4. They both installed completely with no errors. After this I loaded up the Resport Server Configuration Tool on Server4. First thing I did there was Enter in my user and password (MyDomain\SQLRpt), hit apply and went to the Database Tab and Made a SharePoint Integrated Database (ReportServerSharePointMode) then hit apply. From there I went to the Web URL Tab and in virtual directory I have ReportServer_InstanceName, All Assigned, 1440. I then Hit apply there. After this I went back to Server3 and logged in as the Administrator. I then hit Manage Integration Settings and inputed Server4:114/ReportServer_InstanceName, Windows Authentication. Hit apply. And get the following:
Server was unable to process request. ---> The request failed with HTTP status 401: Unauthorized.

I tried again, this time Trusted Account and recieved the same. After that I began looking at the following sources:
msdn.microsoft.com/en-us/library/ee384252.aspx section 5.4
http://support.microsoft.com/kb/871179
technet.microsoft.com/en-us/library/cc263449.aspx

During which point I have added the following SPNs (SharePointWebA - http/Server3.MyDomain.com, http/Server3; and SharePointWebB - http/Server4.MyDomain.com, http/Server4)

After all this I still get the above Error Message when I try this. I have even tried inputing Server4:1440/sites/ReportServer/ReportServer_InstanceName. I am at the end of my wits trying to figure out all this authentication stuff. This has been going on for several days and I have had to reboot the servers several times. I have been following this web page to configure all this. technet.microsoft.com/en-us/library/bb326213.aspx.
Can anyone see where I might have gone wrong?

To rebrief my configuration again:
Server3 - Windows Server 2008 R2, SharePoint Server 2007. Server4 - Windows Server 2008 R2, SQL 2008. And my Windows Firewall Port is open between those two for that particular port.