Hi Max,
first, you have to install and enable the routing-test package. For some platforms (like RB333 on powerpc), mpls-test is also required, otherwise the network in Mikrotik will fail completely.
here are my ospf configs (both ospf and ospf-v3):
[admin@RT0090] > /routing ospf export
# aug/24/2008 12:17:41 by RouterOS 3.13
# software id = 9ZF1-PTT
#
/routing ospf area
set backbone area-id=0.0.0.0 disabled=no name=backbone type=default
/routing ospf
set distribute-default=never metric-bgp=20 metric-connected=20 \
metric-default=1 metric-rip=20 metric-static=20 mpls-te-area=unspecified \
mpls-te-router-id=unspecified redistribute-bgp=no redistribute-connected=\
as-type-2 redistribute-rip=no redistribute-static=as-type-2 router-id=\
10.128.9.1
/routing ospf area range
add advertise=yes area=backbone cost=calculated disabled=no range=0.0.0.0/0
/routing ospf interface
add authentication=none authentication-key=XXXX authentication-key-id=1 \
cost=10 dead-interval=40s disabled=no hello-interval=10s interface=all \
network-type=broadcast passive=no priority=1 retransmit-interval=5s \
transmit-delay=1s
/routing ospf network
add area=backbone disabled=no network=0.0.0.0/0
[admin@RT0090] > /routing ospf-v3 export
# aug/24/2008 12:17:46 by RouterOS 3.13
# software id = 9ZF1-PTT
#
/routing ospf-v3 area
set backbone area-id=0.0.0.0 disabled=no name=backbone type=default
/routing ospf-v3
set distribute-default=never metric-bgp=20 metric-connected=20 \
metric-default=1 metric-rip=20 metric-static=20 redistribute-bgp=no \
redistribute-connected=no redistribute-rip=no redistribute-static=no \
router-id=10.128.9.1
/routing ospf-v3 area range
add advertise=yes area=backbone cost=calculated disabled=no range=::/0
/routing ospf-v3 interface
add area=backbone cost=10 dead-interval=40s disabled=no hello-interval=10s \
instance-id=0 interface=all network-type=broadcast passive=no priority=1 \
retransmit-interval=5s transmit-delay=1s
However I am still not completely able to use ospf-v3 on mikrotik - although the setup is almost the same as for IPv4 (except that the network section is missing from OSPFv3 and also the authentication-key is not present, don't know why...), I have not received routes from a router in a neighbourhood (the connection has been successfully established...)
If you want to, just PM me your mail address and we can continue discussing this in Czech