Ability to save user and inventory information. Thank you!

I believe this is currently possible. Elex did something like this ages ago, so it's probably best asking her.

You can save the info as like saving a normal game, but the values are normally put into arrays marxed with userids, the easiest way to save player info so that's it's not lost is to make a room, and with in the room have objects named after the player's username, with all the data as properties on the object. If you wish I have a rebuilt example from HavenHold, with log in and registur commands and instructions on how to use it.

Be able to use the 16 ascii colors in the text curently you have
|cb black, or current foreground colour
|cr red
|cl blue
|cy yellow
|cg green

Like to see Dark Grey, Light Grey, Magenta (Light Red/Hot Pink), Cyan (Light Blue), Light green, Brown, Tan.

That would be nice.

That can be done just like in the signle palyer version. Using 'foreground <#RRGGBB>' replacing RRGGBB with the hexy code for the colour you want, or typing the name of the colour. You can use '|xn' to keep the line going. Example:

foreground <#AA550F>
msg <You see a |xn>
foreground <blue>
msg <Banana!!!>

Need anything else just ask me.