thanks guys for the help
there was a problem with one screen-shot (may be it was corrupted)
i have submitted hope it will be approved
thanks a lot once again for your support
I am also facing the same problem. I have read all the posts .Nothing worked. any idea?
i got a solution.
suppose you have: one.jpg ,two.jpg,three.jpg….........
just select them all and then compress them using right button to a *.zip folder.
DO NOT :
keep the images inside a folder and then compress the image containing folder.
COMPRESS the images directly to a *.zip folder.
NOW UPLOAD *.zip folder as your Theme Preview
I don’t know how to upload a preview template.
You can use the URLs option by your own hosting for preview. there are some free hosting sites.To find just Google it!
OR (I did not tried it yet . just check it) you may try keeping the template containing folder BESIDE one.jpg,two.jpg….... and then select them all and compress them using right button to a *.zip folder.