Page Locked!

I am trying to design pages for an article to be published in our university 
magazine (am extremely newbie and trying to save money). Instead while I was 
importing a table-image on a new page, I discovered that the rest of the 6 
pages are now locked and are un-editable.. how did it happen, I have no idea.. 
I opened other articles and they are all editable, except this one.. so my 
question is: how do i unlock or unfreeze or edit these pages? please note that 
the entire document is not locked.. just the first 6 pages of it.. plz help coz

I need to finish design by next week.. 

> Instead while I was
> importing a table-image on a new page, I discovered that the rest of the 6
> pages are now locked and are un-editable..

If you are able to select objects, check to see if you have locked them. I
like to keep the Info Toolbar open, because it displays a lock status icon.
It also tells you at a glance what kind of object is selected.

Check in the layers panel to see if you have locked layers.

Perhaps you made master pages. Check in the Document Panel.

I you accidentally selected all on a page and ran the Convert to Image
command, the objects would be converted to a single raster image.

Judy Arndt