Welcome from nearby Delaware! There is tons of information here compiled over the years and many very knowledgeable folks in many areas of modeling... live steam, home machining, scratch building, hand laying track and turnouts, wiring/electrical, battery power and conversions, etc etc.
In regards to older pictures not loading, there could be a few reasons why they wont show up. Most typical reason is if someone embedded links to picture hosting sites like Photobucket and the pictures may no longer be hosted on those sites, so you get an error watermark or they just don't load.
Enjoy perusing the forums and don't be afraid to join in the conversations in the threads. People are exceptionally helpful with answering questions so don't hold back. There is a search feature here to see if your question has been asked before and typically offers a ton of answers already without the need to start a new topic.