Paypal API/ Twitter API Fixes. Auto Tweet/Retweet.

I run a Twitter Marketplace based Website where anyone can go to buy Tweets/Retweets from Popular Twitter accounts, for advertising etc. (Similar to the old site TweetPeddler.) All Tweets are meant to be automatically posted, however there's a few errors on the site that need to be fixed. I need a freelancer who has experience with Paypal API and Twitter API, & can get the job done asap. I'm only hiring someone who adds me on SKYPE to talk more, otherwise please do not bid. My Skype username is [Removed by Freelancer.com Admin] Thank you.