Recently, I tried writing a blog from the tab but was unable to upload pictures from the gallery.

I find the personal computer better and easier or such purposes. 

The laptop also, I am not favorable because we have to use our finger tips to move the cursor. 

I still am trying to figure how to use the mobile or tablet pc to show me pictures that I can upload for blogs on bitlanders.

If you know how to do this, please write a tutorial and msg me so that i can also benefit and so will others.