Adsense Problem

I have add my website and blogsite site into 'allow only this site to show google ads'.

Now my problem is my website is working well but problem with blogsite. My CTR is going down. I think my subdomain is not working.....

for example my blogsite URL:
http: // sample. blogspot. com /

& I have added like this:
sample.blogspot.com

If this ok? or not?

If ok then what wrong! please help me soon.

anybody please help me

In general, the way to boost CTR as as follows:

1. Test

move ads around

2. test some more

change ad sizes
change colors
change number of ads
make sure ads are relevant to the content

3. (test)

Other than that, I don't understand your actual question above

On a blog, new ads attract attention.... but after a while people become blind to them.

from my experience, most people tend to get used to the adds, after a while in the site.

I use a Wordpress plugin on my site to vary the position of the ads on my pages, I have noticed that since I installed this plugin my click-thorughs have risen quite a bit.

You really have to think a little... On the sites you visit often... how often do you even read the ads?... Have you ever clicked on an ad in the blogs and forums your frequent? I have read few of the ads on sites I frequent all the time and clicked on none. Am I the exception?

No I don't think you are an exception. I hardly ever click on ads unless they really grab my attention. I must say I don't really click on text ads but I have been known to click through a few nice banners when they interest me.