Doug,
RocketTheme templates can confuse the heck out of me. I got your double title thing fixed, but you can let me know if it makes sense. Basically, the title was appearing twice because the same module was being shown in the Members drop-down menu and in the sidebar. To fix, I:
* Copied the Member Login module you had originally
* Re-positioned the 'original' Member Login module to the "members_drop_down" position, which doesn't really exist, but that allows me to publish it without it appearing in the template normally.
* Enabled the Copied module
This way, both modules (member drop-down and sidebar) were separate instances. That seemed to fix it, but please test. I also thing the JFBCLogin module in the 'members_drop_down' position should be set to show on "All" menu items, otherwise, that drop-down, on some pages may be blank. I'll let you decide to do that though.
Also, while in there, I noticed you had the MyAPI System plugin enabled. I disabled this as it shouldn't be necessary, and may conflict with JFBConnect down the road.
As for the warnings you're getting, what page are you getting that on, and is it on a Joomla Content page, or a K2 (or other) type of page?
Whew... Hope this all helps, and good luck!
Alex