Well the better your skills are at photoshop, the easier it will be.
1) Make your signature, make sure it has buttons or text saying "Vouch" & "Skype" somewhere.
2) Once you have done your signature, [make sure the background of signature is the same as threads.] Crop it into 3 pictures, the main signature, the vouch part, the skype part. Make sure its cropped neatly so no gaps, no edges or things you dont need.
Using photoshop guidelines can help you, make sure its fixed before you start cropping it.
How to Create Guides in Photoshop CS6 - dummies
3) Once you got 3 images containing main signature, vouch button and skype button, upload it to imgur as 3 seperate images. Once you have done that, we will move to the coding part which is relatively easy.
4) Depending on your structure of the image, the lines of code will be placed differently.
CODES [TAKE OUT ASTERISK*]
MAINIMAGE:
[IMG*]PUTMAINIMAGEURLHERE[*/IMG]
SKYPE:
[URL*='
http://hatscripts.com/addskype?SKYPEIDEHERE'][IMG*]VOUCHIMAGEURLHERE[*/IMG][/U*RL]
VOUCH:
[URL*='URLTOVOUCHERE'][IMG*]VOUCHIMAGEURLHERE[*/IMG][*/URL]
Once done that, put all the code next to each other, paste into your signature and should work.
If need help add me on skype: Khizagfx