I will like to be able to show posted topics on the main board i.e as soon as my site opens posted topics on what ever board will be seen.
Also the additional options drop down should be constantly open for users to see first hand the additional options
Are there any mods created for that already?
I'm not sure exactly what you're asking for as far as topics on the main board.
There is a setting to prevent the collapsing of Additional Post Options. I think it's in the "Current Theme" section of the admin center.
This is an example of what I mean www.nairaland.com On it's main board you can see posted topics from different boards.
They're doing that somehow with a modified shoutbox based on the URLs for the pages of topics.
Based on what I can see, here's how they do that:
Reply to an existing topic - delete existing shout for that topic and insert a new one
New topic - delete oldest shout, insert new shout for new topic
So basically they're just showing you an archive of the shoutbox.
Because all topics are viewable by everyone, they don't need to deal with making sure the person viewing the link can actually see the topic.
I don't think that would be practical as a default feature, but it wouldn't be hard to do that with a mod (basically all you'd need is a modified version of ssi_recentTopics).