Originally Posted by GirLuvsDroid
The easiest way, at least for me, to get an app into /system/app is to use Root Explorer to copy the apk into /system/app.
+1 for this also.
I've run into a few mods/tweaks/apps that had install instructions that suggested copy/paste via shell. Since my typing skills aren't the greatest in a shell, I also preferred to do it in a more 'traditional' way, if you please, and root explorer works awesome for it.
Havent tried but I wonder if Astro would work as well?