everything was working till yesterday. But today, all of the sudden, it's not reading "style images", "style tables" and "CSS inserts"

The only thing that's working is "HTML Inserts: Header"

Does anyone have the same problem???

What did you change?

The only thing I can think of is...I just did the "Giving WordPress Its Own Directory"
http://codex.wordpress.org/Giving_Wo..._Own_Directory

Then that is probably the cause.
1) what is the new url?
2) what is the setting dashboard->settings->general->WordPress Address (URL)
3) what is the setting dashboard->settings->general->Site Address (URL)
4) do you have a caching plugin active?

1) what is the new url? ----xxx
2) what is the setting dashboard->settings->general->WordPress Address (URL) --> http://xxxx
3) what is the setting dashboard->settings->general->Site Address (URL) -->http://xxxx
4) do you have a caching plugin active? --> just downloaded one, but didn't really do anything..

Thank you...

Me thinks you made a change to some CSS and it's throwing an error causing the remaining CSS to fail.
Here's what to do.

go to ATO -> export/Import and do an export. Save this file.

Now one by one starting at 'Body, Text & Links, go to the bottom and hit the RED button 'Reset Settings' then go refresh the page and see if it works the way you want. If not, go to the next option page and do it again.

When it starts working, note the option page you are on. Now go IMPORT the settings you saved and then go look at the option page causing the problem and see if you can figure out the error.