Minor Changes of WordPress blog template

A wedding photography studio is looking for someone who would help with some minor changes on our website and the Wordpress based blog. The blog uses a template which was custom-designed for us. The assignment involves: 1) PHP script that would list 5 most recent blog posts on the homepage of the website. 2) Modification of the custom template to include pictures related to each blog post in the table of contents view. The picture for each post can be specified in a custom field or in a similar way. 3) Modification of the custom template to include link to previous and next page when a visitor sees the table of contents filtered by categories. This already works for the unfiltered table of contents using WP-PageNavi plugin. 4) Add a link to each post to be shared on Facebook and via e-mail.