diff --git a/README.md b/README.md
index 0cd7cff..7dbd5d9 100644
--- a/README.md
+++ b/README.md
@@ -7,30 +7,49 @@ There are a few differences from the original, notably that the old
 /root/BytemarkDNS directory and upload script is no longer used, with the 
 uploads now being performed by symbiosis-dns-mythic. 
 
+Installation
+------------
+It's best to 'dpkg --purge symbiosis-dns' before installing 
+symbiosis-dns-mythic, but at the very least you will have to remove it first
+if installed.
+
 Usage
 -----
-You'll need to configure a password for your domain on the Mythic Beasts
+You'll need to configure passwords for your domains on the Mythic Beasts
 control panel.
 
 1. Log in to https://ctrlpanel.mythic-beasts.com
 2. Click 'my domains'
 3. Click on the domain you wish to use.
 4. Under 'Nameservers and DNS' click on 'DNS API'.
-5. Set a random password. You'll only need to remember this once, so make it a
+5. Set a random password. You'll only need to use this once, so make it a
    good one.
 6. Go to 'Manage DNS' for your domain, and make sure the template is set to
-   'None'.
+   'None', or you'll get errors when creating NS records.
 7. You'll need to do this for each domain you intend to manage with symbiosis.
+   It's best to use a unique password for each domain. The pwgen command is
+   excellent for generating them - 'apt-get install pwgen' if it is missing.
 
 Once you've installed the symbiosis-dns-mythic package on your server, you'll
 need to give Symbiosis your DNS password. To do this, put it in a file called
 'mbpassword' in the /srv/my-brilliant-site.com/config/dns/ directory. 
 
 As root, run 'symbiosis-dns-generate --verbose --force' to regenerate the DNS
-records.
+records. These will be under 
+/srv/my-brilliant-site.com/config/dns/my-brillant-site.com.txt as usual, but 
+no longer in TinyDNS format.
 
 Again, as root, run 'symbiosis-dns-mythic -v -f' to force an upload to the DNS
-API in verbose mode.
+API in verbose mode. This will tell you if you have any template or auth
+problems. 
 
-These operations will be run automatically from cron in future, but it's good
-to ensure that it works.  
+These operations will be run automatically from cron in future, after any 
+changes.
+
+TODO
+----
+* Support automatic DNS for subdomains, which symbiosis can't currently do.
+* Make --verbose work automatically for uploads too.
+* Detect presence of NS records and skip them if the Mythic DNS template is not 'none'
+* Make failures a bit more transparent.
+* Clean up some of the spurious template warnings.