Yeap.
For others, who may have this problem, you can enable/disable the "Show mainbody on frontpage" option on gk_gomuproject template configuration.
Go to Extensions > Template Manager and click on our template. On the right parameters, you have this option.
If you select "enable" this option, we recommend to set both header and last module on "-advert2" position as "-header" suffix.
Cheers