I have been involved in automatic publishing which is what I think you want to do. I would need to know what format the newsletter is in before conversion.
Once the stylesheet has been established, the next step is to determine the format of the newsletter (what the general running order is, where things appear on the page, etc). Then it is a matter of plugging in the pieces for the single page html.
How long is this newsletter? Will there be a table of contents? Will it be generic or specific for each element?
What html editor will you be using? Will you use a DTP program and export to html?
I would be delighted to help, as my expertise is in the setting up of work-flow for such publishing, having worked as a publication project manager and consultant for 20 years. Please send me further information about the project so that I can confirm my bid.
I look forward to working with you.
Regards,
Stilman Davis