Welcome Aaron..... [smiley=thumbsup.gif]
I think youve got yourself a pretty decent machine there mate, should be able to produce some beautiful espresso with it.
Like a lot of people before you, youve upgraded the wrong piece of hardware first. If theres something we seem to keep on repeating around here (cause its true), buy the best grinder you can possibly afford as it is this, when coupled with freshly roasted high quality coffee, that will get you well on the way to producing excellent coffee (no matter which brewing method you use)..... Everything else is ancillary to this.
A decent tamper makes it easy to become consistent with the application of consistently the same tamping force and in the interim you might be able find one from a commercial hardware retailer that comes close to being a nice snug fit into your machines PF Baskets. If you do a bit of searching through this website, Im sure youll be able to turn up most of the information you need to help get started and then to stay on the straight and narrow. ;)
All the best Aaron and enjoy the journey..... :)