Uhh, Isn;t that like a fanfare? Well you would do Fanfare 0x13E, i believe, taken from what i know of a scripting tutorial, then do boxet 4 *which is a text box that doesn't close* You do boxset 4 only combined with waitfanfare (which waits for the fanfare 0x13E to close before your able to press A on textbox 4)
Don't fully understand? Here is the script you would do, with guidelines telling u wat they do/mean, written by meh ;)
fanfare 0x13E
message $POINTER (whatever) <----this is the pointer leading to the message that says \v\h01 [Player] recieved a _____ (charmander, in your case)
boxset 4<----this is a text box that doesnt close *use only when combined with waitfanfar*
waitfanfare<------waits for fanfare to end before boxset4 dissapears
if you dont understand this, Pm me, or rather post on my profile as Pm box is rather full.
One more thing, this might not work with XSE, bcuz this is the PoketScript version, as far as I know. Try it out, if it doesn't work try doing something similar that does work. :)