creating new template for your website

To create a new theme folder inside the template folder.
Create a new theme folder. eg: tmpl_sample.
CSS Folder:
The new Css files for the theme are included in the Css Folder.
\tmpl_sample\css
Image Folder:
The new images for the theme are included in the Image folder.
\tmpl_sample\images
Script Folder:
Change the new template name in the files

BxTemplConfig.php
\tmpl_sample\scripts\ BxTemplConfig.php ( line no: 39,40,41,42)
BxTemplName.php
\tmpl_sample\scripts\ BxTemplName.php ( line no: 21)
To hide the top member  block links(join, member Login),
\tmpl_sample\scripts\ functions.php ( line no: 217)
[delete the contents inside the block]
Admin panel
Login to admin panel.
To change the template,
Settings->Advanced Settings
In the Advanced Settings page , at the bottom select the template name from the template dropdown box. Click save changes button. 
To change the position of the block in the page,
Builders->Pages Builder
Select the page,arrange the blocks.

HTML Files:
To modify the layout of the Footer
\tmpl_sample \_footer.html
To modify the layout for the default pages,
\tmpl_sample \default.html
To modify the layout for all the blocks in the home page, 

\tmpl_sample \designbox_1.html

To modify the layout and appearance for the Member Login Form,

\tmpl_sample \login_form.html

To modify the Layout for the Search Page,

\tmpl_sample \page_4.html

To modify the Layout for the Group Page,
\tmpl_sample \page_74.html
To modify the Layout for the Search Result Page,

\tmpl_sample \searchrow.html