Magento Website Changes/ Maintenance

We have an ecommerce website built in Magento that needs a few minor fixes. We had some issues that the contact form etc was not sending to the client. The developer has told us that they had to hardcode it to do it but it appears that it’s still not sending. Option to have “recently viewed products” – be a widget on each product page showing recently viewed products Compare items in store. Create and track coupon codes Sell printable gift certificates Weight options – Current it’s based on fixed prices for various weight parameters – all the weight details have been added and we were hoping to add an automatic calculator. We were advised about temando. Does that system automatically generate a price based on postcode of delivery and weight? We need something that will automatically calculate, not just copy from a table/ database of records. Bulk quantity discount rules per product “did you mean” spelling suggestions in search. Business intelligence reports: • Daily conversion rate • Top 20 customers • Best selling products • Order Locations (google maps) • Orders by item sold • Orders by revenue • Popular products • Inventory Report • Customers by date • Revenue per customer • Search Keywords with results • Search keywords without results • Best performing keywords • Worst performing keywords • Search term corrections • Complete Search engine optimisation • Specify page title text for each product, category, web page and brand • Specify meta keywords and descriptions for each product, category, webpage and brand • Enable or disable search engine friendly URL’s Please show us your experience with Magento and give us an estimated time to fix.