What version of IE are you using with Windows 98, IE 6 hopefully. If IE 5 that may be too outdated to be used effectively with WW.
Your IE crashes all the time because it’s obsolete for today’s modern websites. It should have been updated years ago. At this point I believe it’s too late. Even if you found a CD with IE 6 on it it would not have all the SP updates and monthly patches.
And irregardless of what you use to browse the web Weather Watcher uses the system’s IE install.
Well the IE 6 upgrade was free when MS supported Windows 98 but they stopped supporting it last summer. An OS like a car needs to be maintained to continue running well. And when the patches, upgrades and updates are free there is no excuse not to install them. You don’t need a new computer you need an updated OS.
You don’t have to go to a store to buy a computer or software, you can buy them online. e-Bay would be a good place to start.