Okay - I dont want to sound like a noob but here I go. I rooted my phone and have froyo 2.2 running.
I removed 3g hot spot bloat ware application and want to restore it again. I did some research and found out its "mynet.apk"
Found the file here:
Bought root explorer and copy and pasted the mynet.apk file to systems/app. (did the whole unmount and mount process to copy and execute the file)
I clicked on the file and went through the installation steps. At the end it said "Application Not Installed"
So than I read this:
[How-To] Reinstall Bloatware with 'System Application' Properties - Android Forums
And checked off everything there.
But still even after I did the user settings and rebooted the 3g app icon is still no there.
Figured it out - I just downloaded the older version mynet.apk and it installed and works now.