Modify php5 script

we own a php5 online free application wich easy prduce Ebay's auctions graphics you can check it live here [login to view URL] we need 2 mod on this: ** MOD 1 =====** **integrate a wysiwyg txt editor** (fck, tinymce or any other) for users, that must be usable only on 2 specific fileds in two different steps , here is what they are [login to view URL] field 3 (Write a detailed description of your item) [login to view URL] field 2 (Accepted Payments and Shipping methods) **MOD 2 =====** on step 3 [login to view URL] script permit to upload images from user's pc and rename it uniquely. it work fine and don't want change it, but actually we are able to accept only .jpg ext image files, instead **we want user can upload ANY kind of images ** or, at least, most popular: jpg, gif, png, bmp, tiff we'll give you full access to our server to work directly on it please bid ONLY if you are well experienced on topic, and sure to compete the project in very short timing Feel free to ask us any additional infos Best Regards