Silo structure of wordpress site

hi, i found a few good blogs on how to silo structure a wordpress site which i have tried to implement on my newcasinobonuses.co.uk site. It seems very complex and i probably havent got it right, anyone else here manage to get this kind of structure set up, i would love to one day have sitelinks showing in google search results
heres a blog i found
http://boganmarketing.com/basic-boga...press-seo.html
i couldnt get the robots meta plugin to work correctly, i think it conflicted with another plugin so i had to write my own robots.txt , could anyone take a look and see if this is correct please www.newcasinobonuses.co.uk/robots.txt

im a total novice at seo so any help or thoughts would be greatly appreciated

You have over 330 pages indexed in Google search engine. Did you login to Google webmaster tool?