I can't be sure because I didn't run version 0.9.0.10 for more than a couple of days, and I never ran weekly archives, but I think you need to upgrade to version 0.9.0.11. IIRC one of the issues fixed was handling weekly archives properly. Again, can't say for sure.

hmm, i see. would you happen to know where i can find step-by-step instructions to upgrade? i was only able to find documentation for upgrading from version 0.8.9.