Project Detail

Description

i have a directory website that made by joomla and sobi2
now i want more directory on my website,i use subdomain like
sub.mywebsite.com
sub2.mywebsite.com
sub3.mywebsite.com
that means i install 4 and more different website on my host.
the problem is i hope one user only register on the main website,he do not need register on all the website.
for the sobi2 ,i let user to review all the entry.sobi2 has this plug-in.
but i find it is too simple,i want the review function like the website www.digg.com
it means vote the entry do not simplly by just 5 stars,but by the total number user vote for it(positive+negative),means user can vore is negative.
so the project is

1 synchronization all the subdomain website user database,let the user only register the main website ,then it auto log in all the subdomain websites
2 modify the plug-in review comment plug-in.let it function like www.digg.com
3 modify the module ,so i can show top rated by the number user vote for this enrty,like the website www.digg.com.this module can show top 10 or what ever number top rated entry in each sub-directory.and the whole directory.
4 make a template for sobi2
for the detail of the template
4A for detail view it has the gallery mode show photo in lightbox when click one of them picture.like the website www.massivefps.com
4B for detail view it has tag fonction like the offical website joomla.sigsiu.net
4c for detail view the layout looks like the site www.crazycow.com.au(it has a tile bar.and has a plcae for all its detail like address,phone,email,website.left is its logo.below its description.at the bottem is gallery,at the last is the plcace for review
4d for category view it has a title bar and at the right has the place for icon.at left show the rate.below is the simple  description of that entry

this project should be done within 2 weeks ,14 days.
if you finish it one more day,i will pay less 20 dollar.
means you finish it in 15 days,i only pay you 350-20=330 dollar ,and so on.
every day,you can contact me if you have any thing do not sure about the project by email.i will reply you every day.