Hiding side boxes on the login and profile pages

Open the main.tpl file located in the skins/[CUSTOMER_ACTIVE_SKIN]/customer directory of your CS-Cart installation, where [CUSTOMER_ACTIVE_SKIN] is an active skin of your storefront.
Find the following part of code there:
```
{if !$hide_sideboxes}
```

Replace it with this one:

{if !$hide_sideboxes && $content !="login_form" && $content !="profiles"}