adding payment gateway to asp net forum

Hi, I would like to add a paypal payment area to my asp net forum.i would like clients to pay membership charges on my site. you must have a good knowledge of asp . i would also like my logo extended into a header at the top of the homepage, so maybe a slight re-design on the logo needed. i would also like to add a banner at the top of the page. some pictures need adding to the homepage. also need someone to sort out an existing problem ,, when text is added in a certain area the picture disappears on the homepage. think it just has not been coded properly. navigation area needs to be moved and a slight visual change to that. also would like to add 'live chat' this is a feature which can be downloaded from the site where i purchased the software, its free basically. all the code is included in this software so you are able to customize the whole site easily. also for some reason the most active topics button is not doing its job. basically its not showing the most active topics once you click on it. also wanted the subscription area enabled. i was also interested in sending out an email to members once they recieved a new message on my site. not sure if this can be done through the subcription. thats that lot. thanks.