I will take advice from everyone, but I have seen that Ludek appears to be most helpful so I will direct my comments to him.
Something is a bit screwy in my installation. I am on SP3 188.8.131.521 and trying to upgrade to SP4 (getting an error about a patch with a higher version detected)...I just uninstalled and reinstalled to correct other funky errors....yuck, this is getting messy.
Assuming I get that all cleared up, do I have to download SP5 and SP6 sequentially before I can install SP7?
Also, can you post a valid link for SP5 and SP6? I have SP4 and SP7 but can't upgrade due to VERSION TOO LOW errors...