Kathryn wrote:Last night I was approached by our stake Single Adult Rep and asked to make a web site for an upcoming stake single adult conference. I thought we'd been asked by the Church not to create sites like this, but she assured me we could

She said she was aware of a similar site that had been approved by an Area Authority or someone in a similar position.
Since the stake single adult conference is a stake event, the approved web site for such an event is the stake web site. There are two sources on the stake web site to post information.
One is the
Stake News and Information section. It has limitations. It is text based and there can be only one picture and/or one file attachment. The picture is limited to .jpg or .gif file formats with a resolution of 72 dpi (dots per inch) and a maximum file size of 100KB. File attachments are limited to .doc, .pdf, or .xls formats and a maximum file size of 1Mb.
Another place to post information is in the stake
Resources calendar section of the stake home page. Using this to post information has limitations also. You can find threads on the topic in these forums. To get started you could look at the
Tips & Tricks for Ward / Stake Websitesthread.