SilverWings,
I'm a bit confused by your post...do you have a LW installer or not? If you have no installer (I guess Pro since you paid for it!):
How long ago did you buy Pro? Remember, you'll get updates & email support for 6 months...if you purchased more than 6 months ago, your email address won't be in the database any more.
If that's the case, you can either download the free basic version or buy Pro again. LW doesn't keep old installers for download...it's up to the user to save & back up installers