Your cards are not lost, but it depends on what you have done in the uninstall as to whether you need to redownload.
Did you answer no to the question, "Do you wan to delete the models"?
Did you change the default install path when you installed the first time and then again on the subsequent reinstall?
Did you reinstall under the same user id?
It maybe that all you need to do is trigger a rebuild of your collection by right clicking on the Synchronise with server button on the advanced settings tab and select rebuild collection.
By the way, 12 minutes between asking a question and expecting an answer is way to short. Be patient.