finish virtumart shopping cart and joomla website

My website developer was 90% finished with my eommerce site and got stuck and is unable to complete it. The website is written in Joomla and the ecommerce part in vituemart. There is a lot of cusomization on the site. I need someone who is available right away to finish the shopping cart portion plus make some cosmetic changes such as text and reorganize. All my text changes and issues are addressed in the attached word document, however I think he got stuck on these issues: -Can't click on the shopping bag to get to the order summary. -After adding an item to the shopping cart, a pop up window appears giving option of continuing or cart. Choosing continue, the item adds to the shopping cart but isn't shown in the upper right corner where the shopping bag icon is. If I click summary at the upper right corner by the shopping bag icon, the item does not appear, but if I click check out it shows it as being added. - The payment information is not there on the page for credit card info. and therefore doesn't progress to "complete order" page. I am interested in hiring a freelancer located in the USA. This person must be able to finish my ecommerce site and make the changes outlined in my word document. After all the corrections have been made, there will most likely be a last round of corrections, but should not be extensive. Your bid should also include a period of 4 months to make any adjustments to the site after going live. If agreeable to the freelancer, I am interested in maintaining a relationship to manage the website after the 4 month period. I will deposit the funds in the Milestone account and pay the agreed upon fees once the site goes live and functioning correctly. I will hold back a portion of the funds to be paid at the end of the 4 month period.