I have installed all of those; I just added the repositories and installed them through the Applications Manager.

What error messages do you get when you try to install? How are you trying to install (ie: using apt-get; Application Manager; one-click)? Have you looked at the Log in Application Manager - what does it say?

We need more information to be able to help

I have tried through both app manager and going to Maemo and the "Top download" and clicking through the links. It goes to app manager either way, asks if I want to install, sits there saying "Downloading" then after 15 or so secs says "Download Failed", been acting this way since upgrading to the latest firmware about 2 weeks ago.

Ok... open Applications Manager then tap Menu->Tools->Log see what it says there. This will give you a fairly detailed description of why your download is failing. Post the last logged attempt to install and we'll see if we can't figure it out.

There is another option but it's more complicated so let's start with this one first

Thanks for the offer to help all!

After trying to figure this out for these weeks I am very happy and grateful to accept!

Here's my log:
hildon-application-manager 2.0.2
W: GPG error: http://tuomas.kulve.fi chinook Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 94D0694709064463
-----
Installing mnotify 2.0
Failed to fetch http://catalogue.tableteer.nokia.com...2.0_armel.deb: Could not open file /media/mmc2/.apt-archive-cache/partial/mnotify_2.0_armel.deb - open (30 Read-only file system) [IP: 69.26.180.23 80]
W: Not using locking for read only lock file /media/mmc2/.apt-archive-cache/lock
W: Not using locking for read only lock file /media/mmc2/.apt-archive-cache/lock
-----
Installing maemopadplus 0.32-test2
Failed to fetch http://repostory.maemo.org/extras/po...0-0_armel.deb: Could not open file /media/mmc2/.apt-archive-cache/partial/libwpeditor-plus_1.0-0_armel.deb - open (30 Read-only file system)
Failed to fetch http://repostory.maemo.org/extras/po...st2_armel.deb: Could not open file /media/mmc2/.apt-archive-cache/partial/maemopadplus_0.32-test2_armel.deb - open (30 Read-only file system)
W: Not using locking for read only lock file /media/mmc2/.apt-archive-cache/lock
W: Not using locking for read only lock file /media/mmc2/.apt-archive-cache/lock
-----
Installing maemo-mapper 2.2-os2008
Failed to fetch http://repostory.maemo.org/pool/maem...3-2_armel.deb: Could not open file /media/mmc2/.apt-archive-cache/partial/libgdbm3_1.8.3-2_armel.deb - open (30 Read-only file system)
Failed to fetch http://repostory.maemo.org/extras/po...008_armel.deb: Could not open file /media/mmc2/.apt-archive-cache/partial/maemo-mapper_2.2-os2008_armel.deb - open (30 Read-only file system)
W: Not using locking for read only lock file /media/mmc2/.apt-archive-cache/lock
W: Not using locking for read only lock file /media/mmc2/.apt-archive-cache/lock


Thanks again all, you are all VERY kind!

For the bulk of your problems it appears that your memory card (MMC2) seems to be in read-only mode, maybe corrupted? Application manager cannot download needed packages. Check the settings of application manager and disable this: Use MMC to download packages.

For the 'Public Key' error - you could try 'apt-get update' in Xterm as root. That should get the newest key for you.

Wierd about the card not able to be written to...

I wrote the log to it to get it to my PC for uploaded here...

I guess I could reformat it to get it back in shape and try again...Where in Control Panel is the setting to use the external memory? I looked in memory and am not seeing where to turn it off.

Did a google search and found becomeroot, but can't install it due to the above issue. In a catch-22 situation now, can get become root to get becomeroot but can't download become root to become root.

I will try that and the Xterm command. BTW, what is the default root password on a N810?

Thanks!

Ok, maybe this is connected to all the issues, WHen I try to plug in my 810 by it's USB. I get: Unable to connect via USB, Memory card in use: Internal Memory card.

Tried a new Mini-SD card and got the same error, also I can write to both cards so I don't think it's a corrupted card or a bad slot.

Not sure why it isn't writing to the card correctly...

Any ideas?

I am a N8x0 newbie and my Unix/Linux knowledge is thirty years out of date, so take this for what it's worth.

But when I've seen the "Memory card in use" message, it's been because I had an app or dialog open that referenced a folder or file on the card.

Have you tried turning your unit off and on (i.e., rebooting)? I've seen one or two strange repeatable behaviors on my N810 that have been cured by rebooting.

If that doesn't shake it loose, see what processes are running. Maybe someone can post, for comparison, a list of the processes running in a clean OS 2008 with no apps installed.