I understand that from your location, Yii Page Search is broken, right? Hm… must open a bug ticket and inform Dev Team about it…
Immediately after reading your post, I moved my mouse pointer to the right top corner of this page, clicked with left mouse button in the field I found there (it is marked with an icon representing magnifying glass) then I used my keyboard to enter these two words to this field: image column and… you know what… surprisingly these forum topics pop up:
Displaying an image in CDataColumn
CGridView show images in column
how to show image in CGridView column filter
It took me exactly ten seconds! Ten or even times less then writing this answer to you and probably ten or even more times less then it took you to write that question.
In general: It is possible to display one or many images in CGridView, but as more experienced users stated often for complex purposes like this it is worth considering using CListView, where each row is generated basing on provided view file so it thousand times more flexible and lets you do virtually anything.