First of all I suggest not drinking while reading as this will undoubtedly make it fuzzy
ok now I'll be serious ...
What you need to do is select all your objects (the ones you want in your symbol) and choose symbols ->New Persistent Symbol from selection.
Now that you have a symbol with all your elements in it you need to double click it (to get inside) and you will see your timelines, if you haven't any then you can create timelines (think of the symbol as a mini Hype document).
Once you're done creating timelines and doing whatever you need to do in the symbol. Click the X next to the symbol name (above the timeline in a nice pink) and now you have a symbol that plays when you load your document. (notice the keyframe and line for your symbol in the timeline area)
You can resize the Symbol how you want (can even make the overflow invisible ... handy for some situations) This won't effect the elements inside (unless you're resizing from the top or left sides)
You can also look into custom behaviours too. There are many posts on this here in the forum.