Wide wireless coverge at home!!!

I decided to apply WLAN at my home, i got a Linksys ADSL router (wireless), make the requested steps and every thing is okay now, but the problem is i got some ares uncovered by this router, i bought Linksys repeater and Linksys Access Point, the repeater has solved about 75% of the problem but i still cant make use of the access point.

so is it important or how could i get covered?