Nice subject line. Most people start off with post #1 by saying Hi and introducing themselves.
There's more than 5000 other people who've been able to figure it out, so go ya gotta think the problem may just be on your end. Before acting like an a$$, you could of asked. That's what this site is all about, sharing information.
Are you having problems seeing pictures that other's post in threads or are you having problems uploading to your gallery? Two very different issues, so you'll have to be more specific if you want us to figure out what your doing wrong.
If your just having trouble seeing pics in posts and instead seeing an image that says "No External Links", then RedHorse's has solved your malfunction. If you can't upload to the gallery then it's more than likely a size limitation issue. You should resize your pics so they are are between 600 and 900 pixels wide. With that size you should have no problems. Anything much larger will be larger than a lot of peoples monitor screens anyway. If you can't figure out how to resize your pics, then do a search and figure the rest out yourself. It will make you feel like you accomplished something in your life.