Forum Admin here,
I'll track down the ad to see if we can remove it as it's too intrusive.
As for the update layout, unfortunately we were running on a very old version of Xenforo,and was not viable anymore, the addons started to deprecate and support in the backend was not optimal. We had to move up to a newer version of Xenforo which means a huge jump in functionality, templates and features than what we are all used to. The older templates also were not compatible with the new version.
This is still a work in progress and a learning curve. Any suggestion/issues are more than welcomed and we can work to address them. We are a very small tech team but feel free to loop me on any issues/concerns.
Thanks,