opening jpg attachments

I have a PC running XP Home SP1 and Outlook Express 6. Within OE, I recieve emails with JPG attachments but when I try to open them with OE, a message is displayed stating that no program is assoicated with the file and to create one within Folder options. If I save the file to the hard drive, I can double-click the file within Explorer and the file opens which tells me the file association is correct. Does anyone have any suggestions so I can open the attachments within Outlook Express.