I know that in 99/2000, the cylinder was mounted differently and the trunk would only partially open. this changed in 2000 some time, center mounted strut and trunk that opens almost vertically. You definitely want to mount it according to the later method.
I can take pics of mine, I reinforced the lower mounting point, my trunk lid is broken on both corners where the hinges are but the support works. I leave it closed all the time:)