Go back to the thread that I linked to earlier. Take it slowly & follow the steps carefully - I tried to make those fixes as easy to follow as possible.
Changing ports & deleting the gnutella.net file won't screw up your computer.
If you can't find a preferences folder, remember that you have to show hidden files & folders first...otherwise you won't see the preferences folder.

Are you sure you're looking in the right place for the advanced options in LW? Open LW, click on Tools, click on Options, scroll right down to the bottom of those options & you'll find Advanced. Click on Advanced & then you'll see Performance. Click on Performance & you'll be able to change the options. Click Apply & then OK to save the changes.


The Motorola model will probably have some letters, followed by some numbers (eg SBG900 or WR850G)