This is not a hard project and I can't imagine it would take a good designer any longer than an hour to do.
Basically, we want to place an advertisement on a webpage that is well ranked in the industry we are involved with. The advert will need to have our logo in it and there are words we want incorporated into the advert. We have done two mocks ups but they don't look great as we don't have any design skill (they show the words we want).
The advert cannot be more than 40kb in size, must be either a JPG or GIF file, must be a static image, and cannot have a transparent background or blend into the content of the site we want to advertise on. It can only be 300px x 250px or 728px x 90px - we would actually like to see both sizes so we can choose the best looking, and most stand out, one to put on the site. Keep in mind that the advert will be amongst a bunch of other adverts offering similar products.
The site we will be advertising on is [url removed, login to view] so you can get a feel for what the site looks like and how to make something stand out.
I can provide our logo in an EPS file.