recipients cant open pictures sent using outlook express???

Check the extension on the image. Usually, they're .jpg, .gif, .png. Those should be fairly universal, so let's eliminate that as a possible cause.

I have the same problem. If I attach any jpg picture files to an e-mail in Outlook Express, the recipient tells me it can't be opened. However, if I check the e-mail in the SENT ITEMS folder, I can click on the file and it will open using Windows Picture Manager. I suspect that the recipients must all have some form of blocking turned on, thus preventing them from opening the file(s). Can anyone please throw some light on this phenomenon?
Many thanks,
Ernie B