I'm using Word 2007, and I need first page to bi without pagination, next 7 pages of document to be I, II, III, IV... and rest of them 1, 2, 3, 4, 5.
Is this possible?
You need to divide the document into sections, then specify page numbering style for each section separately. See e.g. Microsoft instructions Number pages differently in different sections (relates to Word 2010, but also applies to Word 2007).