EDIT: Sorry, I didnt know where to post this, Move it if you wish.
Hey Everybody, Ive been making some apps for the instinct for some time, And i've been using a method to side loading apps onto the instinct

Today ill share how to do it, this will require a data connection. but don't worry because it is less then a 1K byte.
First off, Go to:
http://rumkin.com/tools/sprint/jump.phpEnter the Jump Code: 3093148
Or Just download the jad and jar here:
http://www.mediafire.com/?sharekey=5b28586430dc9aead2db6fb9a8902bdaAfter Transfering to phone, your ready to load your apps.
Go into the dialer and dial, ##USB#
Then insert usb cable and Dial ##MSC#
Two drives will appear in on your computer, find the one thats not your memory card.
Enable Hidden Files and find the folder "jas" then "content"
Here are all the java apps on your phone, take a look at the ones ending in jad, Open them untill you see:
MIDlet-Name: SideLoader
MIDlet-Version: 1.0.3
MIDlet-Vendor: Xqtftqx
MIDlet-Icon: /icon.png
MIDlet-1: SideLoader, /icon.png, blank
MIDlet-Description: Application Side Loader
MIDlet-Jar-Size: 1817
MIDlet-Jar-URL: SideLoaderInstaller.jar
Content-Folder: Games
Content-ID: PCS606485
For Example, This was in a file named 12.jad
Now Remember this number and delete the ones ending in jad & jar, (12.jad and 12.jar, NOTHING ELSE!)
Take the jad and the jar you want to put on the phone and rename to the numbers
for example,
You have Guitar_Hero_3.jar and Guitar_Hero_3.jad rename both to the number from above, (For me, 12.jar and 12.jad)
Unplug the phone and dial ##USB# Again
Now go to games and apps and selected the App , "SideLoader" With a Big X
Your app should now load, Have fun

More Stuff to come, and ill do a video.