Rooted my Archos 32 - now how do I get the system memory writeable?

[dfkt]

I rooted my 32 with Archangel, and I want to get rid of the obnoxious advertisements in 99.9% of all market apps. However the system memory is write-only, so I can't modify my hosts file. Is there any fix for that known already? I know that Archangel is rather new and all, but it's not much use without write/modify permissions.

(Please no lectures about advertisements and how they pay the developers. All the apps I use sell full paid versions anyways, and I don't really see the need to endure those ads until I make my mind up on which apps I'm going to buy and which apps I'm going to delete straight away.)