If I recall correctly, once you login successfully a loading page will appear informing a successful login and a "redirection in progress" message. An option to click a hyperlink should appear if the automatic redirection does not work. If the link appears, click it because it should take you to the main Bodhi forum page. Once there, refresh Links2. If there is no link after successfully logging in, then manually modify the link using the Links2 shortcut which is -- if I recall correctly, "g" -- so that the browser directs you to the "bodhilinux.boards.net" main forum page. Upon entering this page, refresh again and you should have access to the board with your logged in account. Hopefully this helps.
I often access this forum using Links2, however at the moment I am working on a project which has taken me away from the computer that has the Links2 Browser. I will check this forum again to see if you still have trouble logging in, and if so, I'll provide the precise steps I follow when accessing this board via the Links2 Browser.