its not necessary that you will get more clicks on high traffic,because it depends on your niche and on your website,you should try to put ads on decent places where it looks like a part of the website which make visitors to click on your ads and use those words to which visitors are looking for!
Ok I agree with your paki webmaster. But without traffic if you designed very good site and keep in user clickable place also it is waste.
i really wander how ppl get visitors is there a behind door from which ppl get visitors websites with alexa rankings first 100.000 how they become that popular i reached a traffic ceil and i cant increase more than this
You can try playing around with colors. I have a post at my blog about designing according to color palettes which makes your blog more easy to read.