Probably won't do you any good (and you must surely have tried it too) but don't double-click on them. Click then push the Dld button.
If it don't work, open Finder and run a search for LW and erase everything. Then go to the site and reldld it. Reinstall. See what happens.

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iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
Our best years have passed us by
The Golden Age Of Leather"
-Blue Öyster Cult-