Some caveats on that article:

It's unneccessary to glue the front corner castings to the front crossbar - the dolphin striker and rivets hold it together just fine. (This means you don't have to disassemble the front crossbar, either.)

DO NOT glue the sidebars in. They are non-structural and really serve only as a place to hold the trampoline (and to sit on). They need to "float" in the corner castings to allow for thermal expansion/contraction differences between them and the hulls.