Theme development

Hello,

I want to change the existing logo for my corporate clean theme. The image I have to replace it is .PNG but when trying to edit my existing logo via "Path to custom logo" I receive an error message that the file type is not compatible. I have also tried .GIF and .JPEG file types, which should work as well but have not.

I have replaced the Corporate Clean Theme logo.png file with the image I would like (using a cPanel) but this method failed too. Google searches have led me to believe others have experienced this issue but a clear solution has not been found.

Hi, I am new to Drupal so I apologize in advance, if the question is stupid, but all my previous attempts and searches to date availed little, so... here it goes:

I would like to prepare the page with the taxonomy listing in the two-column configuration (subtemplating ninesixty): left column will contain the list of all taxonomy terms, with the "active" one being highlighted (a menu of sorts), while the middle column will contain the main content (list of articles tagged with the active term).

I am new to theming in drupal and php as well, generally a front end developer with html/css. I installed my base theme using an edited stark framework, and recieved these notices when I applied the theme:

Notice: Undefined index: sidebar_first in include() (line 138 of /home3/missxjay/public_html/sites/all/themes/Monarch/page.tpl.php).
Notice: Undefined index: sidebar_second in include() (line 144 of /home3/missxjay/public_html/sites/all/themes/Monarch/page.tpl.php).

Here is the code that those notices are referring to:

Can you add slides to the corkedscrewer theme? I have tried adding new slider items into the page.tpl.php file and that doesn't work.

I have a custom content type (portfolio_img) consisting of a title field and image field. I'm displaying them in a view with flexslider pulling in both fields. I made a custom .tpl for this view so I could display the title field in another region (than the main content region). I'm confused what I need to add it. Do I need the portfolio_img's field's machine name or is there a separate machine name for the field render by the view? Is what I'm adding to a region (below) right?

I have rendered a form via a template but I'm unable to display the checkboxes inline.
Can anyone suggest any help to get it inline???