Tan Tan Noodles’s wordpress reports plugin has just been updated as announced on the plugin’s homepage :
Bug Fixes: WordPress Reports (0.81) : tan tan noodles – msg free since 2005
A bug fix release for the WordPress Reports plugin is now available for download.
Thanks to this update, the plugin is now working for me (it would not have let me configure my Google Analytics account in the previous version). No hesitation, give it a try !