First of all I would like to thank Flow for his big contribution on the Vita scene and Yifan

So you need:

A Playstation Vita on 3.60 Firmware
A Playstation Portable Game or Demo
Filezilla (This is an FTP client which let's you transfer stuff from your PC to your Vita)
If you want to be safe and don't get banned I suggest you if you have a Playstation 3 console to download a Vita compatible Game or Demo from your Playstation Network account and transfer it!

After you have a Playstation Portable Game do the following:

0. Download the adrenaline files from here http://www.mediafire.com/file/8w3zsjw61k9ehb2/adrenaline_fix.zip and Playstation Portable 6.61 firmware from Sony's official site (Search on Google 6.61 PSP firmware)
1. Go to beta.henkaku.xyz on your Playstation Vita's Browser
2. Launch molecular shell and by press Select enable unsafe homebrew!
3. Reboot your PS Vita
4. Go to beta.henkaku.xyz again and then launch Vitashell!
5. On your Computer open Filezilla and tranfer to ux0: pspemu the adrenaline folder!
6. Go back to ux0: tai folder and tranfer the config file to your PC and add these lines

Code:

# You must reboot for changes to take place.
*KERNEL
# henkaku.skprx is hard-coded to load and is not listed here
*main
# main is a special titleid for SceShell
ux0:app/MLCL00001/henkaku.suprx
*NPXS10015
# this is for modifying the version string
ux0:app/MLCL00001/henkaku.suprx

^These lines are already in your config file

*KERNEL
ux0:pspemu/adrenaline/adrenaline.skprx
*NPEG00011 < This is my Game ID which is Numblast you can find your game's title ID at ux0:pspemu/PSP/GAME copy the folder's name and paste it!
vs0:sys/external/libpgf.suprx
ux0:pspemu/adrenaline/adrenaline.suprx

7. Rename the 6.61 EBOOT.BIN file to 661.BIN and transfer it ux0spemu/adrenaline
8. Reboot your Playstation Vita so the changes take effect
9. Launch taiHen again!
10. Launch your Playstation Portable game which will take you to Playstation Portable XMB!
11. Create on ux0/pspemu/ a folder named ISO you can transfer your games there and play!

Have fun!