Limewire 1.8 was perfectly running on my cpu with win2000 but then i had the same problem (err1628) after som changes with the JavaRE.
However i found a possible solution.
I don't know if it's the best way, but it's quite effective.

At first i deleted all limewire-programfiles and the entries in the Start-Programs.
Then i opened the regedit (start-run (?,german: ausführen)).
There i used the search-tool with "limewire" and deleted all results. (there are quite a lot)

Finally i installed limewire again, and now it performes like before the JRE-troubles.

I hope it also works out with your systems!
Greetings

Geosch