After the page has successfully downloaded, put your mouse over the URL you want to 'open', and instead of clicking normally on it, opposite-click instead and choose the hidden-menu option to allow you to Open in New Window. When you're finished reading what's been opened in the 'new window', CLOSE it.
What this sequence of events does is open a new window on TOP of the main one. You can click through other 'links' as if it were your main menu or you can Open in New Window yet other links. So, you can stack new windows on top of each other AND independent of each other to your hearts content! None of the windows 'know' about each other so you can pop around them as much as you want, close them at will, and so on.
My best to ya and hope this helps.
PS: DO be aware that if you ever want to POST a message, you'll have to wait for the entire page to load because the POST-form is at the BOTTOM of the main page. In this particular case, it's best to wait until the page loads, THEN press Post a new message.