|I'm pretty sure Win98 version of Paint doesn't support JPG files. I have one thing you could try:|
Click start > Run > Type C:\ and press enter.
Click Tools > Folder Options
Click the File Types tab
Find the JPG file type in the list, and delete it.
Then attempt to reopen a JPG file. It should ask to open with a particular type of file. If internet explorer is not in the list, click browse and type the following, including the quotes: "C:\Program files\Internet Explorer\iexplore.exe"
IE should then view the JPG.
You could also try holding down the shift key and right clicking a JPG and opening the file with IE. Clicking the "always open with" checkbox will save the program you choose as the default program.