I think it's a matter of waiting only. The contribs directory is showing a small section and from what I understood they had some hardware trouble at ibiblio. I guess all is slowly restored now.
I also urge you to upgrade. I also have a seriously customized SME6 and I am not far from deploying the SME7 now. Again with a lot of customized issues. And I can only pray that I won't run into trouble, hackers or other misery with SME6 till I'm done.
Harro