Pickles is silver black.
Oliver is silver bay or silver brown (most likely the latter)
Colors on papers for minis are very often wrong... probably more often than they're right ;)
Yes, you can make him permanent, there's just a higher fee. Is he AMHA or AMHR? Do you have a signed transfer from the owner on the papers to you? If that isnt' who you brought him from, is the buyer part blank? If not, do you have a signed transfer from the "buyer" to you? You'll need that/those.
If he's AMHA, you'll need these, assuming you already have him signed over to you on his papers or a transfer form...
Work order: http://www.amha.org/pdf/gap/WorkOrderFeeSchedule.pdf
Each transfer is $15 if before 6 months, $25 if after 6 months (so if you bought him from the owner on record, one transfer fee... if you have other owners with signed transfers in between, you have to pay a transfer fee for each person IIRC).
The late permanent fee for a stallion is $120, for a gelding it's $20. If he's a gelding but still with the registry as a stallion, then you need to send in a gelding form as well. You also have to become a member of AMHA (you'll get a nice magazine lol) which is $65.
Here's the form to take him permanent: http://www.amha.org/pdf/reg/Temp2Perm.pdf
If you don't have a signed transfer, but can get the seller to sign, here's the form: http://www.amha.org/pdf/reg/Transfer.pdf
And if you need to change him from stallion to gelding, http://www.amha.org/pdf/reg/GeldingVerificationForm.pdf
If he's AMHR, basically the same rules apply...
Transfer form: http://www.shetlandmini.com/attachme...NSFER_2010.pdf
Gelding form: http://www.shetlandmini.com/attachme...rification.pdf
Work order: http://www.shetlandmini.com/attachme.../72/CustWk.pdf
For R, membership of $65, transfer $15/25, temp to perm $10, regardless of gender (much nicer!). With R you don't have to be a member, but if not, fees are doubled.
I have a subscription to AMHA studbook (not R), and would look him up, but you only mentioned his sire's name, and his dam's parent's names. His sire has 51 foals registered with AMHA, 23 of which are status RV, which almost always means they weren't brought permanent.