RX-34_DIABLO_5.2008.43-7_PR_COMBINED_MR0_ARM.bin, RX-44_DIABLO_5.2008.43-7_PR_COMBINED_MR0_ARM.bin and flasher-3.0-static available for download next up to 7 days.

Nokia has ramped down all support for Maemo devices in including N770, N800, N810 and N900. Any remaining liabilities will stay in Nokia while N9 support liabilities will likely move to Microsoft soon, unless they are able ramp down that too.

Edit: flasher 3.5 found from http://www.jedge.com/n810/flasher/ if someone still is looking for it.