Hi,
Unfortunately, in order to access the Wills, as well as many Kent parish registers, Land Tax Assessments and Quarter Sessions (all for Kent), one has to physically attend at a fully computerized Family History Centre. The way everything is set up now for Kent is via a LAN Desk system linked through to the LDS servers. Many of the other records such as the parish registers for Cornwall were, the last time I accessed them, available via the FamilySearch website under the "Browse by Collection" list at the bottom of the home page "United Kingdom and Ireland" link.
If you take a look there, you will see what is available for Kent under each of the collections but you won't be able to get past the index listing for each category.
I have Dod[d], Back[e], Knowler, Chapman, Packman, Rigden and Raynor in my direct and collateral lines, so if you could be a bit more specific on these names I can take a look to see what I have that might help.
Regards,
Susan