v386 Sys Menu is 3.4. There are no hacks for 3.4 and Priiloader actually corrupts the Sys Menu loading.
You have three choices
A) Install IOS50 v4889 and Sys Menu v386 to stay at 3.4 without Priiloader
B) Update to 4.1 by installing IOS60patched Free File Hosting Made Simple - MediaFire Sys Menu v450.
C) Update to 4.1 by following this tutorial http://www.wiihacks.com/recommended-...l-working.html which does the same thing as B but uses wifi to download the Sys menu.
For B & C you can then install Priiloader again.