reinstalling windows 7 from resource cd

I cannot get past stage 4 when reinstalling my system through the resource cd (support.dell.com/support/topics/global.aspx/support/kcs/document?&docid=DSN_362048&isLegacy=true#Issue5). After selecting the cd drive and pressing enter I don't get option in stage 4. Instead i get a screen saying

your cd/dvd drive during this boot cycle is f.

A ramdisk drive is available for this boot cycle as c: it contains several hard drive setup tools. please use these tools only under the direction of dell support staff. 

It then has f:\> and i have to type something in. Thanks for any advice